Câu hỏi: 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 1: John’s score on the test is the highest in the class. He             

A. should have studied all the time

B. must have studied very hard

C. should study very hard

D. must have to study well 

Câu 2: Football is thought              in the world. 

A. to play the most popular sport

B. to be the most popular sport

C. the most popular sport 

D. is the most popular sport

Câu 3: 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 4: He enjoys learing languages __________ he finds them difficult.

A. because

B. or

C. and

D. but

Câu 5: 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 6: My colleague __________ me an email.

A. has just sent

B. has sent just

C. just sent has

D. just has sent