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: 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 3: I would like __________ somewhere different for a change.

A. go

B. to have gone

C. going

D. to go

Câu 4: This is a good athlete ......................... performance is admired by many people in the world.

A. whom

B. which

C. whose

D. who

Câu 5: Why are they happy? – Because her mother __________ them to the zoo.

A. was taking

B. is takingcorrect

C. does taking

D. are taking

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

A. because

B. or

C. and

D. but