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

A. at

B. for

C. during

D. in

Câu 1: Your father is very kind__________ David.

A. to

B. with

C. about

D. for

Câu 2: Have you washed your hands______________ having lunch?

A. before

B. after

C. during

D. for

Câu 3: Why were you absent ____________ class this morning?

A. for

B. with

C. by

D. from

Câu 4: On behalf_____________ our group, he made a speech at the meeting.

A. of

B. to

C. in

D. by

Câu 5: The local people are very hospitable___________ strangers.

A. to

B. for

C. with

D. about

Câu 6: The teacher tried to explain the new formula ______________ his students.

A. to

B. for

C. with

D. by