Câu hỏi: The computer isn’t working. It broke____________ this morning.

A. down

B. in

C. with

D. at

Câu 1: These photographs were taken _____ a friend of mine.

A. to

B. for

C. by

D. of

Câu 2: We areall aware____________ the importance of the environment protection.

A. of

B. about

C. to

D. of

Câu 3: Helen takes____________ her mother in many ways.

A. up

B. off

C. after

D. to

Câu 4: He has waited _____ her for a long time.

A. to

B. for

C. at

D. until

Câu 5: We’ll buy a smaller house whenthe children have grown____________ and left home.

A. to

B. up

C. at

D. for

Câu 6: He's not very keen _____ watching football, but his wife is.

A. on

B. at

C. to

D. for