Câu hỏi: The pens made___________ plastic are very cheap.

A. by

B. with

C. of

D. to

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

A. for/ for

B. to/ to

C. for/ to

D. to/ for

Câu 4: She was very upset ________ the news of her father’s death.

A. at

B. by

C. with

D. about

Câu 5: How long have they been working _____________ the company?

A. for

B. at

C. in

D. on

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