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

A. is selling

B. sold

C. are sold

D. is sold

Câu 1: I can’t see it- it must ....................

A. have been taken

B. be taken

Câu 2: We .......................... all the windows last weekend.

A. washed

B. were washed

C. was washing

D. wash

Câu 3: Tropical fruits .................... by farmers in the lowland region.

A. are grown

B. grown

C. are growing

D. grow

Câu 4: She ................ promoted again.

A. has been

B. is

Câu 5: The tablets .............. with food.

A. must take

B. must be taken

Câu 6: It .................. by next Friday.

A. has to be done

B. has been done