Câu hỏi: We were very grateful _________ our friends for all of their assistance.

A. to

B. for

C. off

D. with

Câu 1: Are you worried _____ the final examination?

A. about

B. to

C. with

D. of

Câu 2: The river Rhine flows _____ the North sea.

A. to

B. into

C. in

D. for

Câu 3: He's not very keen _____ watching football, but his wife is.

A. on

B. at

C. to

D. for

Câu 4: I turned ____________ their offer because they weren’t going to pay me enough money.

A. to

B. down

C. out

D. with

Câu 5: I waited _____ 10 o'clock and then went home.

A. until

B. to

C. for

D. in

Câu 6: It was not a problem. We looked____________ his number in the telephone book.

A. up

B. for

C. to

D. after