Câu hỏi: Since the first space mission many communication satellites ..........................

A. was launched

B. are launched

C. have been launched

D. had been launch

Câu 1: It............ by courier this morning.

A. was sent

B. is sent

Câu 2: 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 3: I can’t see it- it must ....................

A. have been taken

B. be taken

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

A. should be done

B. should have been done

Câu 5: It .................. by next Friday.

A. has to be done

B. has been done

Câu 6: In a few months, the firm ....................... its production.

A. is increased

B. will be increasing

C. will be increased

D. has increasing