past perfect and past perfect continuous exercise pdf

BT Past Perfect and Present Perfect Continuous

TChon 15 PRESENT PERFECT AND PAST SIMPLE TENSE.doc

... recently, don’t you think?6 My grandfather died 30 years ago. I (never/meet) him.4. Fill in the blanks with modals: must - have to - ought to - used to1. You wash your hands before meals.2. It’s ... seventeen. In the play, she must appear in a bright red dress and long black stockings. Last year in another play, she had to wear short socks and a bright, orange-colored dress. If anyone asks her ... the party?7. There are many clouds in the sky. It (rain) ….…… ……………………………6. Read the passage and answer the following questions: My aunt Nhan is an actress. She must be at least thirty-five....

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Tài liệu Present perfect and past doc

Danh mục: Kỹ năng nói tiếng Anh

... been”) Vậy thì ai làm nhỉ. Present perfect and past (2) Unit 14. Present perfect and past (2) A Chúng ta không dùng thì present perfect (I have done) khi nói về một thời điểm ... khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect khi đề ... viết sách). C Chúng ta dùng thì present perfect để đưa ra những thông tin mới (xem UNIT 7). Nhưng nếu chúng ta tiếp tục nói về điều đó, chúng ta dùng thì past simple: A: Ow! I’ve burnt myself....

Unit 13. Present perfect and past (1) doc

Danh mục: Kỹ năng nói tiếng Anh

... làm nhỉ. He lost his key (past simple) but now he has found it ( present perfect) . Anh ấy đã làm mất chìa khóa nhưng bây giờ anh ấy đã tìm ra. Thì present perfect là thì hiện tại hoàn ... sách). C Chúng ta dùng thì present perfect để đưa ra những thông tin mới (xem UNIT 7). Nhưng nếu chúng ta tiếp tục nói về điều đó, chúng ta dùng thì past simple: A: Ow! I’ve burnt myself. ... They went out after lunch and they’ve just come back. (= they are come back now). Sau bữa trưa họ đã đi ra bên ngoài và bây giờ họ vừa quay về. B Thì present perfect không được dùng nếu...

Unit 14. Present perfect and past (2) doc

Danh mục: Kỹ năng nói tiếng Anh

... khứ ( present perfect và past simple) qua các câu sau: Present perfect (have done) I’ve done a lot of work today. Hôm nay tôi đã làm nhiều việc. Chúng ta dùng thì present perfect khi đề ... Ví dụ như: Today, this week, since 1985. Past simple (did) I did a lot of work yesterday. Hôm qua tôi đã làm nhiều việc. Chúng ta dùng thì simple past khi đề cập tới một thời điểm đã kết thúc ... Luân đôn. Anh ấy đã sống ở đó được bảy năm rồi. Lan lived in Scotland for ten years. Now he lives in London. Ian đã sống ở Scotland được mười năm. Bây giờ anh ấy đang sống ở Luân đôn. I have...

present perfect and present perfect continuous

Danh mục: Ngữ pháp tiếng Anh

... hiện tại anh ta không nhất thiết phải đang ở Hà nội) . Present Perfect (Thì Hiện tại hoàn thành) and Present Perfect Continuous (Thì Hiện tại hoàn thành tiếp diễn) ·Dùng với: now that ... you been crying for long time? Mắt của em đỏ. Có phải em đã khóc rất lâu không? Present Perfect Continuous Công thức:Subject + have/has + been + V-ingTrong đó: Have: dùng với các ngôi: ... have written our reports already. Chúng tôi đã viết xong báo cáo Present Perfect Công thức:Subject + have/has + PP(PP: past participle – quá khứ phân từ)trong đó :Have: dùng với các ngôi:...

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Hiện tại Hoàn thành và Quá khứ Present Perfect vs Past Simple pdf

Danh mục: Anh ngữ phổ thông

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Simple past and present perfect doc

Danh mục: Tài liệu khác

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EXESRCISES ON PAST SIMPLE OR PRESENT PERFECT

Danh mục: Tiếng anh

... 10. B: I (be / not) to Australia yet. Simple Past or Present Perfect Simple Exercise 3Put the verbs into the correct tense (simple past or present perfect simple).1. A: (you / be / ever) to ... Aran and Jack / not / do their homework 8. Jane and Ben / not / tidy up their rooms 9. Alex / not / feed the hamster Hazel / not / empty the bin Simple Past or Present Perfect Simple Exercise ... (can / concentrate / not) on the film. Simple Past or Present Perfect Simple Exercise 8Put the verbs into the correct tense (simple past or present perfect simple).1. I (just / finish) my homework....

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The Simple Past Tense and The Past Continuous Tense

Danh mục: Tiếng anh

... 4. The past continuous tense : ( thì quá khứ tiếp diễn )_ Formation : ( công thức ) S + was / were + V-ingS...

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Đề tài " Classical and modular approaches to exponential Diophantine equations I. Fibonacci and Lucas perfect powers " pdf

Danh mục: Thạc sĩ - Cao học

... and (ii) are treated in Sections 5 and 6, respectively. Sections 7 and 8 are devoted to step (iii). Sections 9 and 10 are concerned with Steps (iv) and (v). Section 11 deals with steps (vi) and ... Classical and modular approaches to exponential Diophantine equations I. Fibonacci and Lucas perfect powers By Yann Bugeaud, Maurice Mignotte, and Samir Siksek* CLASSICAL AND MODULAR ... real case: 1, 2 and 3are real numbers > 1, and the logarithmsof the αi’s are real (and > 0),ã the complex case: 1, 2 and 3are complex numbers of modulus one, and the logarithms...

Unit 5: Possibility and Probability Perfect Modals pdf

Danh mục: Kỹ năng nói tiếng Anh

... has a lot of exams coming up soon, and he is also working on a term paper. He must have been studying at the library. Unit 5: Possibility and Probability Perfect ModalsI. Possibility: May, ... room are turned off. She must be sleeping. (right now). Past time:MODAL + have been + v-ingMeaning: in progress at a time in the past. ã Ex1: Sue wasn’t at home last night when we went ...  In negative sentences both must not and don’t have to (also don’t need to and need not) are used. Must not is used when the speaker expects or orders...

Sustainable Energy Harvesting Technologies Past Present and Future Part 7 pdf

Danh mục: Kĩ thuật Viễn thông

... load and constant temperature gradient ∆T. 4 Modeling and Simulation of Thermoelectric Energy Harvesting Processes Piotr Dziurdzia AGH University of Science and Technology in Cracow Poland ... Peltier effect Qc1 and Qh1, Joule heat Qc2 and Qh2, heat conduction Qc3 and Qh3. In case of the Joule heat it is assumed that one half of it dissipates at the cold side and the other half ... Sustainable Energy Harvesting Technologies – Past, Present and Future 116 resistive load RL, the voltage VS forces a Peltier current I flow, and in consequence there appears a Joule heat...

Sustainable Energy Harvesting Technologies Past Present and Future Part 9 pdf

Danh mục: Kĩ thuật Viễn thông

... Circuits and Systems, vol.2, no.4, pp.251-259, 2008.168Sustainable Energy Harvesting Technologies – Past, Present and Future 14 Sustainable Energy Harvesting Technologies: Past, Present and FutureAt ... Energy Harvesting Technologies – Past, Present and Future 10 Sustainable Energy Harvesting Technologies: Past, Present and Future4. Hybrid ﬂexible energy harvesting and energy storageThe proposed ... Technologies – Past, Present and Future Wearable Energy Harvesting System for Powering Wireless Devices 5Barbic et al. (1999), rated voltage at about 1.5 V and capacity of ≈ 30 mAh) in prototype and to...

Sustainable Energy Harvesting Technologies Past Present and Future Part 14 pdf

Danh mục: Kĩ thuật Viễn thông

... http://www.secomtel.com/UpFilesPDF /PDF/ Agilent /PDF_ DOCS/SKYDIODE/ 03_ SKYDI/HSMS2850 .PDF (Last accessed on 13 July, 2011) [6] McSpadden, J. et al., H. (1992). Theoretical and Experimental Investigation ... temperature sensor with WLAN at 2.4 GHz (ISM band). An ISM band sleeve antenna is used for the transmission. Using the cellular band rectenna shown and discussed in Section 2.5.1, at least 3.14 ... Harvesting Technologies – Past, Present and Future 254 The transmitter consists of one-chip microcomputer (MCU) PIC16F877A and wireless module nRF24L01P for the control, and MCU can be connected...