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

A. is selling

B. sold

C. are sold

D. is sold

Câu 1: Their house .............. last week.

A. was bought

B. has been bought

Câu 2: It ................ next week.

A. is been published

B. is being published

Câu 3: The tablets .............. with food.

A. must take

B. must be taken

Câu 4: 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 5: She complains that she ................................ headaches.

A. has frequently had

B. has been frequently

C. has frequently

D. had frequently been had

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

A. is increased

B. will be increasing

C. will be increased

D. has increasing