... GRAMMAR REVISION 2
I.Put the verbs in parentheses in the right tense, the Present Simple or the Past ... Everyday Peter (go) ___________ to school by bicycle but yesterday he
(go)___________ by bus.
2. When he (be)___________ a boy, he (play)___________ with friends in his
home village.
3. Fred ...
1. - Where’s Peter?
- He (be) ___________ in the garden. He (pick)___________ s...
... part.
January 2, 1996
Nina Pride
407 Willow Way
Iowa City, Iowa 522 45
Bill 58) Fork, general manager
Bill's Overhead Door Opener Company
129 7 Kentucky Way
Iowa City, Iowa 522 40
Dear 59) Mr. ... 17,19 62 in Corvallis, Oregon.
a. May 17 19 62 in Corvallis, Oregon.
b. May 17 19 62, in Corvallis Oregon.
c. May 17,19 62 in Corvallis, Oregon.
d. May 17,19 62, in Corvallis, Oregon.
e. c...
...
entitle
name
describe
8.I've been so busy with new clients that I hired new staff
just to .
2. I some great books from the library this past
weekend.
lent
had a loan of
borrowed
loaned
... y
r
2
, với y
r
1
=
e
2x
2
là nghiệm riêng của y
′′
− 2 y
′
+ y =
e
2x
2
y
r
2
=
−e
−2x
1 8
là nghiệm riêng của y
′′
− 2 y
′
+ y =
−e
−2x
2
. Kết luận: y
tq
= y
0
+ y
r
1
+ y
r
2
.
1 -CA 2.
... riêng.
dx
dt
= 5 x + y + z
dy
dt
= 2 x + 6 y + 2 z
dz
dt
= x + y + 5 z
Đáp án
Câu 1(.5 điểm). Khai triển: s in x + ln ( s in x +
( 1 + x
2
) =
x
3
6
+ o...