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: By the time the applicant makes up his mind, the offer .......................

A. will cancel

B. will have been cancelled

C. will be cancelling

D. will have been cancel

Câu 2: Their house .............. last week.

A. was bought

B. has been bought

Câu 3: The new bridge ........................ before the end of next month.

A. will be completed

B. will complete

C. is completed

D. completes

Câu 4: The bridge ........................

A. is still built

B. is still being built

Câu 5: It .................. with at the moment

A. is dealt

B. is being dealt

Câu 6: Concert tickets .................... at the box office.

A. is selling

B. sold

C. are sold

D. is sold