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: 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: When we were children we          skating. 

A. had gone

B. were going 

C. go 

D. used to go

Câu 3: We didn’t go on holiday last year because we didn’t have enough money.

A. If we hadn’t had enough money, we wouldn’t have gone on holiday last year.

B. If we had had enough money, we would have gone on holiday last year. 

C. If we hadn’t had enough money, we would have gone on holiday last year. 

D. Unless we had enough money, we would go on holiday last year

Câu 4: Don't forget to come here in time,            ?

A. can you

B. will you

C. do you

D. are you

Câu 5: By next year, we             here for ten years? 

A. lived

B. have lived

C. will live

D. will have lived

Câu 6: Although he is intelligent, he doesn’t do well at school. 

A. Despite being intelligent, he doesn’t do well at school.

B. In spite of intelligent, he doesn’t do well at school. 

C. In spite he is intelligent, he doesn’t do well at school. 

D. Although his intelligence, he does well at school.