He spent all his money. He even borrowed some from his friends.

A. As soon as he borrowed some money from his friends, he spent it all.

B. He borrowed some money from his friends and spent it all.

C. Not only did he spend all his money, but he also borrowed some from his friends.

D. Not only did he spend all his money but also he borrowed some from his friends.

You took lots of warm clothes. Actually, it was not necessary.

A. It is not necessary for you to take so many warm clothes.

B. You needn’t have taken so many warm clothes.

C. You have taken so many warm clothes that I don’t need.

D. You mustn’t take lots of warm clothes as it will be not necessary.

Tính giá trị của tổng bốn đơn thức sau đây khi x = –6, y = 15:

$11x^2{y}^3; -\frac{3}{7}{x}^2{y}^3; -12x^2{y}^3; \frac{10}{7}{x}^2{y}^3.$

More petrol is consumed nowadays than ten years ago.

A. Not so much petrol was consumed ten years ago as nowadays.

B. Petrol consumption is going down nowadays.

C. We had more petrol ten years ago than we do nowadays.

D. We should consume as much petrol as possible.

I last read a book three months ago.

A. I read a book three months ago at last.

B. I haven’t read a book for three months.

C. The book three months ago was the last one I read.

D. I have been reading a book for the last three months.

b) Tìm đơn thức B biết rằng 2x²yz – B = 3x²yz.

As the clerks were processing the applications, Harry figured that it will take four hours for his to be reviewed.

A. processing

B. will tale

C. for his

D. to be reviewed

a) Tìm đơn thức A biết rằng A – xy²z = 4xy²z.

b) Tìm đơn thức với ba biến x, y, z cùng bậc với M, có hệ số bằng  $1-\sqrt{3}$, biết rằng số mũ của y và z lần lượt là 1 và 2.

Our trip to Swiss Alps had to be put out twice because of bad weather

A. Our

B. to

C. put out

D. because of

Cho đơn thức  $M=-\frac{3}{5}{x}^{2}y{z}^3$.

a) Tìm đơn thức đồng dạng với M và có hệ số bằng  $1+\sqrt{3}$;

Though my grandfather is old, she is very healthy and alert.

A. my

B. is

C. she is

D. and

Sam _____, but I’m not sure as he didn’t leave a message on the answering machine.

A. must have called

B. might have called

C. can’t have called

D. should have called

b)  $N=xy\sqrt{5}{x}^2$ khi  $x=-2,y=\sqrt{5}$.

You _____ buy a dictionary; there are a lot of dictionaries of all kinds in class.

A. may not

B. mustn’t

C. can’t

D. needn’t

A. will you

B. don’t you

C. shall we

D. will we

Thu gọn rồi tính giá trị của mỗi đơn thức sau tại giá trị đã cho của các biến:

a)  $M=\frac{1}{2}{x}^{2}y\left(-4\right)y$ khi  $x=\sqrt{2},y=\sqrt{3}$;

You can cook Italian food, _____?

A. can you

B. can’t you

C. don’t you

D. cannot you

Cinderella danced _____ than any other girls at the ball.

A. more gracefully

B. more graceful

C. the most gracefully

D. so gracefully

Thu gọn rồi tìm hệ số và bậc của mỗi đơn thức sau:

$3x{y}^2{x}^2\sqrt{5}; -7,5xz\left(-2\right)yz; x\left(1+\pi \right)xy; \frac{y{x}^2}{3}y{z}^2.$

_____ she stays in England, _____ her English will be.

A. The longest / the best

B. The longer / the more better

C. The longest / the better

D. The longer / the better

Never before _____ in an earnest attempt to resolve their differences.

A. have the leaders of these two countries meet

B. did the leaders of these two countries met

C. have the leaders of these two countries met

D. the leaders of these two countries have met

_____ the meal when there was another knock on the door.

A. Hardly had we started

B. No sooner had we started

C. We hardly had started

D. Scarcely did we start

We _____ Emma since she _____ to work in New York a year ago.

A. didn’t see / had gone

B. haven’t seen / went

C. haven’t seen / had gone

D. hadn’t seen / went

c) Hãy chia các đơn thức (đã thu gọn) trong bài thành các nhóm sao cho các đơn thức đồng dạng thì thuộc cùng một nhóm và hai đơn thức không đồng dạng thì nằm ở hai nhóm khác nhau. Tính tổng của các đơn thức trong mỗi nhóm.

b) Tìm các đơn thức thu gọn trong các đơn thức trên và thu gọn các đơn thức còn lại.

I found these photos while I _____ my cupboards.

A. was cleaning out

B. had cleaned out

C. am cleaning out

D. cleaned out

Cho các biểu thức sau:

$-xy2y; \left(1+\sqrt{2}\right)x^{2}y; x+1; \left(1-\sqrt{2}\right)xyx; 1,5x{y}^2; \frac{x}{y}; \left(-x\right)0,5y^2.$

a) Trong các biểu thức đã cho, những biểu thức nào là đơn thức?

We will have prepared everything _____.

A. after the meeting began

B. as soon as the meeting will begin

C. by the time the meeting begins

D. when the meeting would begin

_____, we will be able to leave for the airport.

A. While the taxi arrives

B. As soon as the taxi arrives

C. When the taxi arrived

D. When the taxi will arrive

Officials said they wouldn’t _____ to the workers’ demands.

A. account for

B. fall behind

C. wait for

D. give in

“ _____ !” he shouted, but it was too late – she had knocked the whole tray of drinks onto the floor.

A. Speak up

B. Stay on

C. Watch out

D. Cool Off

The other runners struggled to _____ the leader.

A. look down on

B. look up

C. lead to

D. keep up with

“Come In, come in!” George said_____. “You’re just in time for dinner.”

A. resentfully

B. hospitably

C. neglectfully

D. admittedly

The trip to Paris will be a(n)_____ opportunity to practise my french.

A. ideal

B. admitted

C. visible

D. recognizable

I’ve lost_____with my college friends since moved to France.

A. face

B. pace

C. track

D. touch

Exposure to the sun can _____the ageing process.

A. domesticate

B. accelerate

C. diversify

D. deepen

She listened _____, nodding her head now and again.

A. sympathetically

B. sympathetic

C. sympathize

D. sympathy

He is an outstanding goalscorer who doesn’t get the _____ he deserves.

A. recognizably

B. recognizable

C. recognition

D. recognize

The policy is to integrate children with special needs_____ ordinary schools.

A. at

B. of

C. for

D. into