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: 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 2: 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 3: This is a good athlete ......................... performance is admired by many people in the world.

A. whom

B. which

C. whose

D. who

Câu 4: How ............. meat do you want?

A. some

B. any

C. many

D. much

Câu 5: 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 6: He enjoys learing languages __________ he finds them difficult.

A. because

B. or

C. and

D. but