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

A. is studied

B.  has been studying 

C. had been studying

D. studied

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

A. writes

B. willl write

C. has written

D. was writing

Câu 2: He hates his boss so he ------------- his job.

A. leaves

B. has left

C. is leaving

D. left

Câu 3: As the sun ------------ I decided to go out.

A. shines

B. has shone

C. shine

D. was shining

Câu 4: We are too late. The plane …………… off ten minutes ago.

A. has taken

B. took

C. had taken

D. was taken

Câu 5: While the waiter was picking up the broken plates, he ---------- his finger.

A. cut

B. was cutting

C. had cut

D. cuts

Câu 6:  How long have you ------------- he was a liar.

A. been knowing

B. knew

C. know

D. known