Câu hỏi: She ................ well at school but thatchanged when she became friends witha different group of girls.

A. did

B. had done

C. had been doing

Câu 1: From this graph we can see that theeconomy.................. at the moment.

A. improves

B. improve    

C. is improving

Câu 2: They ................. personal computerswhen my father was a student.

A. hadn’t

B. didn’t have

C. weren’t having

Câu 3: The manager interviewed ........... candidates in turn.

A. each of the

B. each

C. every

Câu 4: The teacher ............... us how to do theexperiment when the fire bell rang.

A. showed 

B. shown

C. was showing

Câu 5: When they had to go, everybody ................. Nina and her mother for the party.

A. said

B. thanked

C. told

Câu 6: The teacher..................... us how to do the experiment when the fire bell rang.

A. showed

B. shown

C. was showing