Câu hỏi: While Peter ________the rose bush in the back yard, the phone rang.

A. were watering

B. has watered

C. watered

D. was watering

Câu 1: I don’t understand why the students didn’t keep silent while the speech _________.

A. was being made

B. was made

C. has been made

D. has been made

Câu 2: _________, we would have been forced to sack him.

A. Were he not to resign

B. If he resigned

C. Had he not resigned

D. If he had resigned

Câu 3: You have just passed your exam. This makes your parents happy.

A. You have just passed your exam makes your parents happy.

B. That you have passed your exam makes your parents happy.

C. You have just passed your exam which it makes your parents happy.

D. Having just passed your exam making your parents happy.

Câu 4: The result of the studies have had a strong impact on future developments.

A. of

B. have had

C. strong

D. on

Câu 5: We should participate in the movement _________to conserve the natural environment.

A. which organized

B. organizing

C. to organize

D. organized

Câu 6: After David _________ his homework, he went straight to bed.

A. had finished

B. has finished

C. was finished

D. finished