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

A. is studied

B.  has been studying 

C. had been studying

D. studied

Câu 1: “How many pages…………… so far?"

A. have you studied

B. did you study

C. do you study

D. had you studied

Câu 2: As the sun ------------ I decided to go out.

A. shines

B. has shone

C. shine

D. was shining

Câu 3:  How long have you ------------- he was a liar.

A. been knowing

B. knew

C. know

D. known

Câu 4: -------------- study hard when you were at school?

A. Must you

B. Had you

C. Did you have to

D. Were you

Câu 5: “What a lovely boat!” “I ……………half a year building this boat.”

A. spend

B. spent

C. spending

D. have spent

Câu 6: He often ------------ so nervous before his exams.

A. feels

B. felt

C. was feeling

D. had felt