Câu hỏi: 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 1: 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 2: Constantly staying in cold weather may bring           pneumonia

A. in

B. off

C. up

D. on

Câu 3:                 his childhood in DALAT, he knew the city well

A. To spend 

B. Spent

C. Having spent 

D. To have spent

Câu 4: “It’s too stuffy in this room, isn’t it?” said the guest.

A. The guest suggested that the room should be aired. 

B. The guest remarked that the room should not be aired.

C. It’s too stuffy in this room, isn’t it

D. The guest said that there is too much stuff in the room

Câu 5: When we were children we          skating. 

A. had gone

B. were going 

C. go 

D. used to go

Câu 6: 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.