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

A. showed 

B. shown

C. was showing

Câu 1: I don’t know whether to accept the joboffer. It’s .................

A. a difficult decision

B. the difficult decision

C. difficult decision

Câu 2: ............. the experiment three timesnow with different results each time!

A. We’ve done

B. We did

C. We’ve been doing

Câu 3: 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 4: …………. the doctor at 2.00 thisafternoon so I can’t go to the lecture.

A. I’m seeing

B. I see.

C. I will see

Câu 5: Her mother made a big chocolate........... with ‘Happy Birthday’ on the top. 

A. meal

B. cake

C. dish

Câu 6: I ........... want to be a practisingdoctor but now I’m more interested in research.

A. was used to 

B. used to 

C. would