Câu hỏi:

Mary’s eyes are weak, __________, she has to wear glasses.

A. but

B. however

C. and

D. therefore

Câu 1:

My shoes are dirty. I’d better take them ________before I come in.

A. aways

B. up

C. on

D. off

Câu 2:

Who is going to __________ your children when you’re at work?

A. look for

B. look up

C. look after

D. look out

Câu 3:

If there is a mechanical problem, we suggest ______ the manufacturer directly.

A. contact

B. contacting

C. to contact

D. be contacted

Câu 4:

Our energy will soon come to an end if we don’t__________ it.

A. use

B. save

C. spend

D. take

Câu 5:

If you want to save money, you should ________the amount of water your family use

A. increase

B. reduce

C. adapt

D. repair

Câu 6:

We decided not to go out for meal _________ we were too tired.

A. but

B. because

C. so

D. and