Câu hỏi: ……….., 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 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: He devotes most of his time……photography. 

A. for studying 

B. to studying of

C. to studying

D. to study

Câu 3: The chief of police………work is very important takes care of the public safety. 

A. who

B. which

C. whose

D. whom

Câu 4: The students were all………….by the lion's roar. 

A. frighented

B. destroyed

C. bitten

D. collapsed

Câu 5: The principal doesn't permit………here. 

A. to shout

B. shout

C. shouting

D. shouted

Câu 6: The gang admitted they had committed four recent bank robberies. 

A. confided

B. conferred

C. confessed

D. confused