Câu hỏi: When we were children we          skating. 

A. had gone

B. were going 

C. go 

D. used to go

Câu 1: The police had to let her _________ because of insufficient evidence. 

A. go

B. to go 

C. going 

D. gone

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: By next year, we             here for ten years? 

A. lived

B. have lived

C. will live

D. will have lived

Câu 4: It is no use           to him - He neverlistens. 

A. talk

B. to talk

C. talking 

D. talked 

Câu 5: 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 6: 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.