The warming of the Earth is caused by exhaust gas from automobile engines, factories and power (1) _____________ . Carbon dioxide goes up into the atmosphere, and it form a kind of screen that keeps or allows the sunshine in but stop the Earth heart (2) _____________ getting out. It works like a greenhouse, that's why we call (3) _____________ the Green House effect.

Because of this effect, the Earth is getting warmer all the time. This (4) _____________ in temperature will cause big changes to the world's climate. The sea level will increase as the ice (5) _____________ the poles will melt.

Câu 1:

• A. companies
• B. factories
• C. sites
• D. stations

Câu 2:

• A. from
• B. up
• C. against
• D. away

Câu 3:

• A. is
• B. be
• C. it
• D. them

Câu 4:

• A. raise
• B. rise
• C. drop
• D. fall

Câu 5:

• A. covering
• B. covers
• C. covered
• D. cover

Câu 6:

It was relatively easy for him to learn baseball because he had been a cricket player. 

• A. approximately 
• B. comparatively 
• C. nearly 
• D. essentially 

Câu 7:

You have to be on your toes if you want to beat her. 

• A. pay all your attention to what you are doing 
• B. upset her in what she is doing 
• C. get involved in what she is doing 
• D. make her comply with your orders 

Câu 8:

• A. accurate 
• B. account 
• C. accept 
• D. accuse 

Câu 9:

• A. talks 
• B. takes
• C. decides
• D. completes 

Câu 10:

• A. rapidly 
• B. comfortably 
• C. fluently 
• D. necessarily 

Câu 11:

• A. politician 
• B. genetics 
• C. artificial 
• D. controversial 

Câu 12:

Foreign students who are doing a decision about which school to attend may not know exactly where the choices are located. 

• A. doing
• B. about which
• C. to attend
• D. the choices

Câu 13:

In that age of computers, it is difficult to imagine how tedious work of accountants and clerks must have been in the past. 

• A. that age
• B. it is
• C. work
• D. have been

Câu 14:

Since he failed his exam, he had to __________ for it again.

• A. pass
• B. make
• C. take
• D. sit

Câu 15:

Don't worry. He'll do the job as ___________ as possible. 

• A. economizing
• B. economic
• C. economical
• D. economically

Câu 16:

Only when you grow up ____________ the truth. 

• A. you will know
• B. you know
• C. do you know
• D. will you know

Câu 17:

My brother left his job last week because he did not have any ___________ to travel. 

• A. position
• B. chance
• C. ability
• D. location

Câu 18:

John paid $2 for his meal, __________ he had thought it would cost. 

• A. not as much
• B. not so much as
• C. less as
• D. not so many as

Câu 19:

It is very important for a firm or a company to keep ________ the changes in the market. 

• A. pace of
• B. track about
• C. touch with
• D. up with

Câu 20:

I'm sure you'll have no ________ the exam.

• A. difficulty passing 
• B. difficulties to pass 
• C. difficulty to pass 
• D. difficulties of passing 

Câu 21:

I ________ this letter around for days without looking at it.

• A. carry
• B. must carry
• C. have been carrying
• D. am carrying

Câu 22:

Vietnam's rice export this year will decrease _____ about 10%, compared with that of last year. 

• A. with
• B. at
• C. by
• D. on

Câu 23:

I won't change my mind ________ what you say. 

• A. whether
• B. no matter
• C. because
• D. although

Câu 24:

I'm sorry to say that it seems you've been shirking your responsibilities.

• A. going along 
• B. standing up to 
• C. taking on 
• D. refraining from 

Câu 25:

She gave an impeccable reading of the sonata and had the audience on their feet.

• A. suspicious 
• B. unqualified 
• C. negative 
• D. imperfect