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

A. been knowing

B. knew

C. know

D. known

Câu 1: When the phone rang she ------------ a letter.

A. writes

B. willl write

C. has written

D. was writing

Câu 2: He often ------------ so nervous before his exams.

A. feels

B. felt

C. was feeling

D. had felt

Câu 3: She is tired because she ------------- all day.

A. is studied

B.  has been studying 

C. had been studying

D. studied

Câu 4: While the waiter was picking up the broken plates, he ---------- his finger.

A. cut

B. was cutting

C. had cut

D. cuts

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

A.  drove

B. drive

C. driven

D. was driving

Câu 6: “What a lovely boat!” “I ……………half a year building this boat.”

A. spend

B. spent

C. spending

D. have spent