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

A. is selling

B. sold

C. are sold

D. is sold

Câu 1: It ................ next week.

A. is been published

B. is being published

Câu 2: She complains that she ................................ headaches.

A. has frequently had

B. has been frequently

C. has frequently

D. had frequently been had

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

A. have been taken

B. be taken

Câu 4: The day before yesterday we .............................a very bad storm.

A. had had

B. were having

C. had

D. have had

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

A. has to be done

B. has been done

Câu 6: Since the first space mission many communication satellites ..........................

A. was launched

B. are launched

C. have been launched

D. had been launch