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

A. to

B. for

C. by

D. of

Câu 1: I waited _____ 10 o'clock and then went home.

A. until

B. to

C. for

D. in

Câu 2: The computer isn’t working. It broke____________ this morning.

A. down

B. in

C. with

D. at

Câu 3: It was not a problem. We looked____________ his number in the telephone book.

A. up

B. for

C. to

D. after

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

A. to

B. for

C. at

D. until

Câu 5: I always come _____ school _____ foot.

A. to/ on

B. to/ by

C. to/ with

D. at/ on

Câu 6: We areall aware____________ the importance of the environment protection.

A. of

B. about

C. to

D. of