Câu hỏi: We must take steps to preserve natural resources; otherwise the planet will be in danger. 

A. Unless we take steps to preserve natural resources, the planet will be in danger. 

B. Unless we take steps to preserve natural resources,the planet will not be in danger.

C. If we take steps to preserve natural resources, the planet would be in danger.

D. If we take steps to preserve natural resources,the planet will be in danger. 

Câu 1: When we were children we          skating. 

A. had gone

B. were going 

C. go 

D. used to go

Câu 2: It is raining hard, so our meeting has to be _________ till next Saturday? 

A. put off

B. put down 

C. put up 

D. put away

Câu 3: The car was so expensive that I didn’t buy it

A. The car was not so cheap that I couldn’t buy it. 

B. The car was such expensive that I didn’t buy it. 

C. The car was cheap enough for me to buy

D. The car was too expensive for me to buy

Câu 4: You          forget what I told you . It is very important

A. need not 

B. don't have to

C. must not

D. shan't

Câu 5: He asked, “Why didn’t she take the final exam?”

A. He asked why she hadn’t taken the final exam. 

B. He asked why she took the final exam. 

C. He asked why didn’t she take the final exam. 

D. He asked why hadn’t she taken the final exam.

Câu 6: It is no use           to him - He neverlistens. 

A. talk

B. to talk

C. talking 

D. talked