Câu hỏi: Clean air is necessary ........... our health.

A. to

B. for

C. on

D. with

Câu 1: What do you often do ............ the evening?

A. on

B. at

C. for

D. in

Câu 2: She is always fed up .......... washing dishes after dinner.

A. with

B. of

C. up

D. to

Câu 3: I'm very grateful .......... her ......... help.

A. to / of

B. in / for

C. to / with

D. to / for

Câu 4: Don't you think you should try to be friendly ... your classmates?

A. to

B. of

C. with

D. by

Câu 5: I'm very sorry ............. what I have done.

A. with

B. to

C. for

D. by

Câu 6: Henry was born ........ 1992.

A. on

B. in

C. at

D. of