Câu hỏi: Christmas songs ___________ for people centuries ago.

A. were performed

B. are performed

C. performed

D. was performed

Câu 1: You must look _______________ your children when they are playing.

A. around 

B. about

C. after

D. down

Câu 2: He isn’t tall enough ______________ the books on the shelf.

A. reach

B. reaching

C. to reach

D. reached

Câu 3: You can’t make a comparison between beef and oranges, they are completely ___________ .

A. differ

B. different

C. difference

D. differently

Câu 4: It's difficult ................ your direction.

A. to follow

B. following

C. to following

D. followed

Câu 5: Would you mind ___________ the windows?

A. closed

B. closing

C. to closing

D. to close

Câu 6: The weather .................. nice yesterday.

A. is

B. was

C. will be

D. has been