Câu hỏi: The Englishcontest organized___________ our teachers is an annual event in my school.

A. to

B. off

C. for

D. by

Câu 1: Do you think we’ll find a solution ___________ the problem?

A. about

B. for

C. to

D. with

Câu 2: Are you acquainted ___________ this man?

A. with

B. to

C. by

D. on

Câu 3: Have you washed your hands______________ having lunch?

A. before

B. after

C. during

D. for

Câu 4: She said to me “why don’t you relax___________ a while?”

A. at

B. for

C. during

D. in

Câu 5: Opening the parcel, hewas surprised ____________ what he saw.

A. at

B. in

C. to

D. with

Câu 6: On behalf_____________ our group, he made a speech at the meeting.

A. of

B. to

C. in

D. by