Câu hỏi:              Christmas Eve, people often have parties at midnight

A. In

B. At

C. On

D. For

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:                 his childhood in DALAT, he knew the city well

A. To spend 

B. Spent

C. Having spent 

D. To have spent

Câu 3: People protesting against pollution are marching to London. 

A. People who protest against pollution are marching to London. 

B. People who protests against pollution are marching to London.

C. People who protesting against pollution are marching to London.

D. People protect pollution are marching to London.

Câu 4: 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 5: When we were children we          skating. 

A. had gone

B. were going 

C. go 

D. used to go

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