Câu hỏi: -------------- study hard when you were at school?

A. Must you

B. Had you

C. Did you have to

D. Were you

Câu 1: We are too late. The plane …………… off ten minutes ago.

A. has taken

B. took

C. had taken

D. was taken

Câu 2: She is tired because she ------------- all day.

A. is studied

B.  has been studying 

C. had been studying

D. studied

Câu 3: He hates his boss so he ------------- his job.

A. leaves

B. has left

C. is leaving

D. left

Câu 4: Has your teacher ever ------------ angry with you?

A. get

B. getting

C. got

D. gets

Câu 5:  I’m sorry. I don’t understand what -----------------.

A. you say

B. you're saying

C. you will say

D. you would say

Câu 6: When I got to the office, I ----------- that I had forgot to lock the door.

A. realized

B. had realized

C. realize

D. have realized