Câu hỏi: No one knew precisely what would happen _____________ a human being in space.

A. with

B. to

C. on

D. at

Câu 1: I’m not interested ____________ politics.

A. in

B. on

C. at

D. to

Câu 2: You should learn ____________ heart all the new words and try to use them in the context.

A. on

B. with

C. by

D. of

Câu 3: There’s really no need for you to be afraid ___________ the examination.

A. of

B. for

C. with

D. off

Câu 4: I was delighted _____________ the present you gave me.

A. with

B. about

C. for

D. to

Câu 5: Thank you. It was very kind _________ you to help me.

A. for

B. to

C. with

D. of

Câu 6: Mrs. Brown is often worried ___________ money.

A. about

B. with

C. to

D. on