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: She always takes good care _______ her children.

A. for

B. in

C. of

D. with

Câu 2: He wore a hat, which made him look _______________ a spy.

A. like

B. up

C. after

D. back

Câu 3: She was very surprised ________ the grade she received.

A. at

B. on

C. of

D. about

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

A. at

B. by

C. with

D. about

Câu 5: We congratulate you ___________ your successful flight.

A. on

B. about

C. by

D. with

Câu 6: Mary always take good care__________ her children.

A. off

B. of

C. by

D. with