Câu hỏi: We congratulate you ___________ your successful flight.

A. on

B. about

C. by

D. with

Câu 1: China became the third country in the world to be able to independently carry __________ manned space flights.

A. by

B. up

C. on

D. out

Câu 2: Our study is very important____________ our future and useful_____________ our country.

A. for/ for

B. to/ to

C. for/ to

D. to/ for

Câu 3: It was very nice__________ him to give me a lift.

A. of

B. by

C. to

D. on

Câu 4: Smoking is harmful _____________ our health.

A. to

B. by

C. against

D. with

Câu 5: She was very upset ________ the news of her father’s death.

A. at

B. by

C. with

D. about

Câu 6: How would the body react__________ the extreme changes in temperature?

A. by

B. to

C. with

D. about