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

A. showed

B. shown

C. was showing

Câu 1: 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 2: I finished my essay yesterday but ………. it in to the tutor yet.

A. I’ve given

B. I haven’t givencorrect

C. I didn’t give

Câu 3: I finished my essay yesterday but ………. it in to the tutor yet.

A. I’ve given 

B. I haven’t given 

C. I didn’t give

Câu 4: I ........... want to be a practisingdoctor but now I’m more interested in research.

A. was used to 

B. used to 

C. would

Câu 5: She..................some friends to her house for a party.

A. decided

B. agreed

C. invited

Câu 6: While we’re working on the project ourboss ................ on a beach in Greece!

A. will sit 

B. will have sat

C. will be sitting