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: Do you know the boy           at the party last week?

A. we talked about

B. about him we talked 

C. we talked about him

D. who we talked about him 

Câu 2: They __________ their homework, then they listened to music.

A. does

B. did

C. do

D. doed

Câu 3: 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 4: Did he tell you           ?

A. what was the problem

B. what the problem was 

C. was what the problem

D. the problem was what

Câu 5: This is a good athlete ......................... performance is admired by many people in the world.

A. whom

B. which

C. whose

D. who

Câu 6: I would like __________ somewhere different for a change.

A. go

B. to have gone

C. going

D. to go