Câu hỏi:  How long have you ------------- he was a liar.

A. been knowing

B. knew

C. know

D. known

Câu 1: 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

Câu 2: How …………since we …………school?

A. are you/ left

B. have you been/ have left

C. were you/ left

D. have you been/ left

Câu 3: -------------- study hard when you were at school?

A. Must you

B. Had you

C. Did you have to

D. Were you

Câu 4:  I’m sorry. I don’t understand what -----------------.

A. you say

B. you're saying

C. you will say

D. you would say

Câu 5: When she was 21 she -------------- across the United States.

A.  drove

B. drive

C. driven

D. was driving

Câu 6:  I think John …………..tomorrow.

A. would come

B. come

C. will come

D. comes