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: The man………..we met on the train was the headmaster

A. whose

B. which

C. what

D. whom

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: He devotes most of his time……photography. 

A. for studying 

B. to studying of

C. to studying

D. to study

Câu 4: ……….., 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

Câu 5: "When will Jean return me the book she borrowed?" - "When she……..it." 

A. finished

B. has finished

C. will finish

D. finish

Câu 6: The policemen………the robbery are looking for three young men.

A. investigate

B. investigating

C. investigated

D. investigates