Câu hỏi: 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 1: The teacher..................... us how to do the experiment when the fire bell rang.

A. showed

B. shown

C. was showing

Câu 2: I..................want to be a practising doctor but now I’m more interested in research.

A. was used to

B. used tocorrect

C. would

Câu 3: If the trend continues, the averageincome ............. by 107% by 2020.

A. will increase

B. will have increased

C. will be increasing

Câu 4: ............. the experiment three timesnow with different results each time!

A. We’ve done

B. We did

C. We’ve been doing

Câu 5: 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 6: When they had to go, everybody ................. Nina and her mother for the party.

A. said

B. thanked

C. told