Câu hỏi: Smoking is harmful _____________ our health.

A. to

B. by

C. against

D. with

Câu 1: She was very surprised ________ the grade she received.

A. at

B. on

C. of

D. about

Câu 2: Ken prefers Chinese food________ French food.

A. to

B. or

C. and

D. with

Câu 3: Jane doesn’t spend much money ______ clothes.

A. over

B. about

C. at

D. on

Câu 4: We might need more food, depending ____ how many people turn up.

A. for

B. on

C. at

D. with

Câu 5: He insisted ______ taking us dinner.

A. on

B. in

C. over

D. of

Câu 6: A sign warned motorists ______ dangers.

A. of

B. for

C. about

D. a and c