choose the correct form of the verbs can could and be able to

Bài tập tiếng anh ôn thi đại học

Ngày tải lên : 22/06/2014, 11:56

... conditions I can' t/ couldn't She was able to be /could have been a star but she became a nurse instead 10 I could /can drive but I can' t ride a bike B: Choose the correct form of the verb: must/have to/ mustn't/ ... town He was called Jack Unit 10: Modal Verbs A: Choose the correct form of the verbs: can, could and (be) able to I really enjoyed staying with my aunt when I was a child because she always told ... could could have been 10 could have phoned was able to could be couldn't could have been can B have to must/have to must/have to mustn't needn't/don't have to 10 don't have to/ needn't has had to...

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A1 eingangskurs grammar exercies

Ngày tải lên : 29/06/2014, 06:52

... conditions I can' t/ couldn't She was able to be /could have been a star but she became a nurse instead 10 I could /can drive but I can' t ride a bike B: Choose the correct form of the verb: must/have to/ mustn't/ ... town He was called Jack Unit 10: Modal Verbs A: Choose the correct form of the verbs: can, could and (be) able to I really enjoyed staying with my aunt when I was a child because she always told ... could could have been 10 could have phoned was able to could be couldn't could have been can B have to must/have to must/have to mustn't needn't/don't have to 10 don't have to/ needn't has had to...

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Bài tập trách nghiệm tiếng anh pot

Ngày tải lên : 12/07/2014, 06:20

... conditions I can' t/ couldn't She was able to be /could have been a star but she became a nurse instead 10 I could /can drive but I can' t ride a bike B: Choose the correct form of the verb: must/have to/ mustn't/ ... town He was called Jack Unit 10: Modal Verbs A: Choose the correct form of the verbs: can, could and (be) able to I really enjoyed staying with my aunt when I was a child because she always told ... could could have been 10 could have phoned was able to could be couldn't could have been can B have to must/have to must/have to mustn't needn't/don't have to 10 don't have to/ needn't has had to...

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Tài liệu ~$pply the correct form of the verbs pdf

Ngày tải lên : 26/12/2013, 01:18

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Tài liệu Supply the correct form of the verbs1 docx

Ngày tải lên : 23/01/2014, 07:20

... want to live in a snake 14 My brother managed to kill the snake just at the time when I (be) had been almost exhausted If he (be) had been a little late, I (kill) would have been killed by the ... wouldn't want 14 My brother managed to kill the snake just at the time when I (be) almost exhausted If he (be) a little late, I (kill) by the snake.was / had been / would have been killed 15 Had ... If today (be) a holiday, I would stay in bed for all day long.were If she ( make) him change his mind, she would save him a lot of trouble.made I wish he (come) tomorrow.would come I wish it (be) ...

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USE THE CORRECT FORM OF THE WORDS IN BRACKETS pdf

Ngày tải lên : 21/07/2014, 21:20

... one of the best football in the world (play) The town is situated on the river (attract) How can you imagine the of mathematics in our modern life? (important) The book is very to me (use) The of ... that they are unable to offer you employment (information) You are very from your brother (differ) The to the problem will be difficult to find (solve) Try to use your money and goods as as you can ... is thinking of English (study) Do you like to solve puzzles? (mathematics) The to the problems will be difficult to find (solve) He is the most pupil in our class (intelligence) The company is...

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Supply the correct form of the words in brackets

Ngày tải lên : 23/10/2015, 16:09

... guard caused them to drop the money and run 82 Parent is( condition) upon delivery of the goods 83 The sky began to ( dark) .as the storm approach 84 She’s very( create) the storm approach ... most of the buildings there ear made from an( attract) of light stone that is particular to the Cotswold’s In the summer, the Cotswold’s can get rather( crowd) but it is always possible to ... future looks bad What can each of us do? We can t clean up our( pollution) seas overnight Nor can we stop the ( appear) of plants and animals But we can stop adding to the problem while( science)...

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Give correct forms of the verbs

Ngày tải lên : 07/06/2013, 01:26

... once and had to get up at every morning It was difficult at first as I (not get up) so early 66 Cuckoos (not build) nests They (use) the nests of other birds 67 I (wear) my sunglasses today because ... millions of people every year 45 If Mr Lam (go) to Paris next week, he (see) the Eiffel Tower 46 I myself (witness) an accident on the Main Road yesterday A boy (knock) down by a car Then he (take) to ... car Then he (take) to the nearest hospital 47 Most of the Earth’s surface (cover) by water 48 The first festival (hold) nearly eight hundred years ago 49 There’s someone behind us I think we (follow)...

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Choose the correct forms of the verb potx

Ngày tải lên : 08/08/2014, 13:22

... years are has has been have been - They _ on the project at the moment working be working is working are working - Do you still _ to the tennis club? belongs are belong belonging belong - I never ... works - I to a great radio show on the way to work listening to listening have listening was listening - Tom's not here He's out _ his mother visit visited visiting is visiting ... never _ Tim anymore see has see seen seeing - I _ football after work play to play playing am play 10 - We _ a lot of volunteer work are doing does ...

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A study of the linguistic features of suggestion verbs in english and their vietnamese equivalents

Ngày tải lên : 26/11/2013, 13:17

... terms of the syntactic and semantic features The analysis results of the ESVs and VSVs will be compared and contrasted in order to find out the similarities and differences between them The analysis ... awareness of Vietnamese learners of English in terms of this kind of verbs so that they can apply the right use of these verbs in using the English language 1.2.2 Objectives The objectives of this ... requirements, requestives and advisories In fact, the complication and the diversity of the structures and the meaning nuances of SVs are clear Table 4.52 A Summary of Structures of ESVs and Their Vietnamese...

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A study of the linguistic features of saying verbs used in political documents in english and vietnamese

Ngày tải lên : 26/11/2013, 13:19

... Vietnamese learners be able to use these verbs flexibly on the basis of mastering the meaning and the relationship among these verbs 1.6 THE ORGANIZATION OF THE STUDY The thesis consists of five chapters, ... In the process of saying these verbs of asserting are realized in the formula: Pledge / Promise H a, cam k t, nguy n In the process of saying these verbs of committing are realized in the formula: ... continue or succeed Table 4.11: Verbs of Directing English Verbs of Directing Vietnamese Verbs of Directing In the process of saying these verbs of declaring are realized in the formula: [SAYER +...

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Tài liệu Báo cáo khoa học: The pro-form of BMP-2 interferes with BMP-2 signalling by competing with BMP-2 for IA receptor binding pptx

Ngày tải lên : 18/02/2014, 06:20

... example, they can even elicit completely opposite effects to those of the mature growth factors by binding to pro -form- speciﬁc receptors [9–11] The pro-peptide of the related TGFb has been shown to ... interactions of transforming growth factor-b (TGF-b) isoforms with latency-associated protein and the ectodomains of the TGF-b type II and III receptors reveals different kinetic models and stoichiometries ... development of the arthritis has been discussed [26] The data presented here provide clear evidence that the pro -form of BMP-2 can interact with BMPR-IA However, receptor binding of pro-forms of the...

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Tài liệu Báo cáo khoa học: Regulation of dCTP deaminase from Escherichia coli by nonallosteric dTTP binding to an inactive form of the enzyme ppt

Ngày tải lên : 18/02/2014, 16:20

... the trimer that linked the conformation of residues 120–125 to the position of the active site lip and closure of the C-terminal end over the active site However, it is reasonable to expect these ... between the dCTP(dUTP)-binding conformer and the dTTP-binding conformer of dCTP deaminase We were not able to identify structural changes in the main chain of the subunit, or in the interaction of ... moved to new positions The signiﬁcance of this last observation is that due to the proximity of residues 120–125 from each subunit in the centre of the trimer, the side chains of Val122 of one...

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Tài liệu The 2012 Nexus Event – An Unknown Form Of Energy Is Coming Our Way pdf

Ngày tải lên : 19/02/2014, 03:20

... chance to transcend the old ways and to learn to live in peace and harmony with all the rest that exist in the Cosmos That process of the rebirth to half-etheric beings, according to the input ... the planet, and they also they are talking about suns…forth sun, fifth sun and so on And when you look at the ice core records you see that the times of the beginning and the termination of the ... and it will not be a nice place to be anymore Anyway, the thing will go worse and worse, the Sun will burn hotter and hotter like never before, because the gravity from the central belt of the...

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Tài liệu Báo cáo khoa học: Expression and function of Noxo1c, an alternative splicing form of the NADPH oxidase organizer 1 doc

Ngày tải lên : 19/02/2014, 06:20

... and kidney To compare the amounts of the two variants expressed in the testis, we performed the PCR using the primers ‘d’ and ‘c’, where the cDNAs for both Noxo1b and Noxo1c are ampliﬁed as the ... located between the pair of primers (Fig 2A) The lengths of the PCR products of Noxo1b and Noxo1c were 225 and 240 bp, respectively To delineate the difference in the two products, we subjected the ... equivalent to that by Noxo1b (Fig 7) The difference may be due to the fact that the signiﬁcance of the PX-mediated lipid binding depends on the type of Nox, although the PX domain of Noxo1 by...

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Báo cáo khoa học: Crystal structures of the apo form of b-fructofuranosidase from Biﬁdobacterium longum and its complex with fructose pot

Ngày tải lên : 06/03/2014, 00:21

... apo form of the enzyme runs along the axis of the b-propeller through the whole domain and is only blocked by Cys236 in the area of the subsite )1 binding the fructose molecule A number of structures ... and ratio of the shortest to the longest axis of 0.628 Kinetic parameters of b-fructofuranosidase The activity of b-fructofuranosidase was detected by measuring the amount of liberated reducing ... on the top The overall shape of this domain is cylindrical with the ‘funnel’ shape channel inside of it, which resembles the shape of a ﬁshtrap The active site is located at the bottom of the...

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Báo cáo khoa học: DNA polymerase e associates with the elongating form of RNA polymerase II and nascent transcripts pot

Ngày tải lên : 07/03/2014, 11:20

... H5 could reveal the functional difference between total RNA pol II and isoform IIO, but may also simply reflect the apparently lower affinity of antibody N20 in the application Taken together, the ... effect of the replicative state of the cell on the interaction between Pol e and RNA pol II A possible confinement of the interaction to late G1 and S phases (the cell cycle stages dedicated to initiation ... translocation of DNA and RNA through the enzyme [32,33], the cdk inhibitors 5,6-dichloro-1-beta-d-ribobenzimidazole (DRB) and roscovitine inhibit phosphorylation of the CTD and thereby prevent...

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Báo cáo khoa học: Puriﬁcation and structural study of the b form of human cAMP-dependent protein kinase inhibitor pdf

Ngày tải lên : 07/03/2014, 15:20

... to a-helix in the human PKIb; the 1666 and 1247 cm)1 bands are the characteristic frequencies of the random coil structure Meanwhile, the 1682 and 1255 cm)1 bands can be assigned to extended chain ... regions of human PKIb are sensitive to secondary structure of protein and one might expect the above solution structure to be reﬂected in Fig The 1652 and 1270 cm)1 bands can be assigned to a-helix ... the bands at 1683, 1669 and 1663 cm)1 are possibly assigned to turns or bends; and the band at 1647 cm)1 is likely to be the random coil structure As occurred in FTIR, the Raman amide III¢ and...

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Báo cáo khoa học: The propeptide in the precursor form of carboxypeptidase Y ensures cooperative unfolding and the carbohydrate moiety exerts a protective effect against heat and pressure pot

Ngày tải lên : 07/03/2014, 21:20

... dependent on the number of structural domains, but this issue may be extended to the biological meaning of the structure of proCPY proCPY must be rather unstable in vivo because it is a precursor to an ... that the cleft of the active site will be located in the interface between the two structural domains of CPY and would be ﬁlled by the propeptide, thus uniting the two domains in a body, as if the ... that of its unglycosylated form, though the DV and DGP values were almost the same The Pm value of proCPY was higher than that of its unglycosylated form This is due to the higher DV value of the...

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Báo cáo khoa học: Isothermal unfolding studies on the apo and holo forms of Plasmodium falciparum acyl carrier protein Role of the 4¢-phosphopantetheine group in the stability of the holo form of Plasmodium falciparum acyl carrier protein docx

Ngày tải lên : 16/03/2014, 10:20

... are comparable, the Tg values of the proteins vary slightly; there is a difference of almost C between the Tg values of the proteins, the value being higher for the holo form There have been contrasting ... structure, on the basis of their percentage contributions (65% and 35%, respectively) to the overall structure of the protein The structures of the major and minor conformations of holo-ACP bear close ... has been solved by Sharma et al and it is found to exist in conformational equilibrium between the two states [24,25] These two states have been identied as the major and the minor forms of the...

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