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: How would the body react__________ the extreme changes in temperature?

A. by

B. to

C. with

D. about

Câu 3: We congratulate you ___________ your successful flight.

A. on

B. about

C. by

D. with

Câu 4: The pens made___________ plastic are very cheap.

A. by

B. with

C. of

D. to

Câu 5: It was very nice__________ him to give me a lift.

A. of

B. by

C. to

D. on

Câu 6: Ken prefers Chinese food________ French food.

A. to

B. or

C. and

D. with