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

A. are grown

B. grown

C. are growing

D. grow

Câu 3: 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 4: Before leaving camp, the Boy Scouts .............. the fire.

A. were put out

B. had been put out

C. put out 

D. had putted out 

Câu 5: The bridge ........................

A. is still built

B. is still being built

Câu 6: Their house .............. last week.

A. was bought

B. has been bought