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

A. We’ve done

B. We did

C. We’ve been doing

Câu 1: Her mother made a big chocolate........... with ‘Happy Birthday’ on the top. 

A. meal

B. cake

C. dish

Câu 2: The teacher..................... us how to do the experiment when the fire bell rang.

A. showed

B. shown

C. was showing

Câu 3: For those of you new to the company, this leaflet is full of ...............

A. a valuable information 

B. the valuable information

C. valuable information

Câu 4: …………. i the doctor at 2.00 this afternoon so I can’t go to the lecture.

A. I’m seeingcorrect

B. I see

C. I will see

Câu 5: When I arrived the lecture .............. so I didn’t find it easy to follow.

A. started

B. had started

C. had been starting

Câu 6: You can base your geographyassignment on ................ country – itdoesn’t matter which.

A. a

B. some

C. any