Câu hỏi: The police had to let her _________ because of insufficient evidence. 

A. go

B. to go 

C. going 

D. gone

Câu 1: People have discovered a new source of energy. 

A. A new source of energy have been discovered by people.

B. A new source of energy has discovered.

C. A new source of energy has been discovered.

D. A new source of energy have been discovered. 

Câu 2: Are you satisfied               the result of the final test? 

A. to

B. of

C. about 

D. with

Câu 3: 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 4: We decided to go out for dinner _________it was raining heavily. 

A. because

B. despite 

C. even if

D. although

Câu 5: 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 6: I have two history books, but ____are about American history

A. none of them

B. all of them

C. neither of them

D. most of them