Câu hỏi: Alexander Fleming,           , received the Nobel Prize in 1945

A. that discovered penicillin 

B. who discovered penicillin

C. he discovered penicill 

D. which discovered penicillin

Câu 1: When you arrived back at the hotel,              ?

A. were you noticing what time it was

B. did you notice what time was it

C. did you notice what time it was

D. were you noticing what time was it

Câu 2:               that she didn’t see her parents often.

A. She had so little time

B. She had so few times

C. She had so a little time

D. She had so a few times

Câu 3: Have you ever met the man          ?

A. who married Mary’s cousin 

B. who is married Mary’s cousin 

C. who was married Mary’s cousin 

D. whom married Mary’s cousin

Câu 4: f I had known you would come,           

A. I would not have waited for you

B. I would have waited for you 

C. I will wait for you

D. I would wait for you

Câu 5: He is the person           

A. from who I bought this old car

B. which I bought this old car

C. from that I bought this old car

D. from whom I bought this old car

Câu 6: The doctor advised Robert              to lose weight. 

A. to take more exercise so that he could 

B. to take more exercise if he wanted

C. that he takes more exercise 

D. that he should take more exercise in order that