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

A.  drove

B. drive

C. driven

D. was driving

Câu 3: My daughter ------------- university last June.

A. left

B. has left

C. leaves

D. was leaving

Câu 4: He often ------------ so nervous before his exams.

A. feels

B. felt

C. was feeling

D. had felt

Câu 5: Has your teacher ever ------------ angry with you?

A. get

B. getting

C. got

D. gets

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