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

A. for/ for

B. to/ to

C. for/ to

D. to/ for

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

A. through 

B. up

C. after

D. by

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

A. over

B. about

C. at

D. on

Câu 3: Mary always take good care__________ her children.

A. off

B. of

C. by

D. with

Câu 4: He wore a hat, which made him look _______________ a spy.

A. like

B. up

C. after

D. back

Câu 5: 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 6: Do you believe _______ ghosts?

A. no preposition

B. in

C. on

D. at