Câu hỏi: The pens made___________ plastic are very cheap.

A. by

B. with

C. of

D. to

Câu 1: If you look __________ the book, you can find what you need.

A. through 

B. up

C. after

D. by

Câu 2: 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 3: Jane doesn’t spend much money ______ clothes.

A. over

B. about

C. at

D. on

Câu 4: Mary always take good care__________ her children.

A. off

B. of

C. by

D. with

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

A. of

B. by

C. to

D. on

Câu 6: We congratulate you ___________ your successful flight.

A. on

B. about

C. by

D. with