Câu hỏi: The chief of police………work is very important takes care of the public safety. 

A. who

B. which

C. whose

D. whom

Câu 1: While attempting to reach his home before the storm, …………….

A. John's bike broke down

B. an accident happened to John

C. his bike broke down

D. John had a serious accident 

Câu 2: I don't have many friends and I feel lonely. I wish I ………... 

A. have more friends 

B. had more friends

C. would have more friends

D. will have more friends

Câu 3: The policemen………the robbery are looking for three young men.

A. investigate

B. investigating

C. investigated

D. investigates

Câu 4: It's getting cold. You'd better not…….without a coat.

A. go out 

B. to go out

C. going out 

D. gone out

Câu 5: "When will you see John?" - "I am looking forward to…………him next summer." 

A. seeing

B. seen

C. being seen

D. see

Câu 6: ……….., he would have been able to pass the exam. 

A. If he studied hard

B. If studying hard

C. If he were studying hard

D. Had he studied hard