Câu hỏi: I can’t see it- it must ....................

A. have been taken

B. be taken

Câu 1: We .......................... all the windows last weekend.

A. washed

B. were washed

C. was washing

D. wash

Câu 2: It .................. by next Friday.

A. has to be done

B. has been done

Câu 3: Brigette thinks her dress is a little too long, so she plans to get it ....................

A. shorten

B. shortened

C. to have shortened

D. being shortened

Câu 4: It ................. last week.

A. should be done

B. should have been done

Câu 5: In a few months, the firm ....................... its production.

A. is increased

B. will be increasing

C. will be increased

D. has increasing

Câu 6: She complains that she ................................ headaches.

A. has frequently had

B. has been frequently

C. has frequently

D. had frequently been had