Câu hỏi: She always takes good care _______ her children.

A. for

B. in

C. of

D. with

Câu 1: Why don't you ask_____________ a pay increase?

A. for

B. by

C. to

D. with

Câu 2: How long have they been working _____________ the company?

A. for

B. at

C. in

D. on

Câu 3: Many of the stories are based______________ rumor.

A. on

B. by

C. to

D. with

Câu 4: She was very surprised ________ the grade she received.

A. at

B. on

C. of

D. about

Câu 5: You should make use___________ the books you have.

A. of

B. by

C. to

D. up

Câu 6: 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