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

A. to

B. for

C. off

D. with

Câu 1: I can't remember exactly when the accident happened. I think it was _____ nine and half past nine.

A. from

B. between

C. to

D. near

Câu 2: My headaches have been much better since I gave ____________ drinking coffee.

A. to

B. up

C. for

D. with

Câu 3: If there was a technical failure, Gagarin might never get __________ to the Earth.

A. to

B. back

C. from

D. down

Câu 4: We need to set ___________ early tomorrow.

A. off

B. of

C. for

D. to

Câu 5: He's not very keen _____ watching football, but his wife is.

A. on

B. at

C. to

D. for

Câu 6: Are you acquainted _____ the lady?

A. with 

B. about

C. to

D. at