Câu hỏi: 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 1: She was very surprised ________ the grade she received.

A. at

B. on

C. of

D. about

Câu 2: He insisted ______ taking us dinner.

A. on

B. in

C. over

D. of

Câu 3: I think your mother should let you make___________ your own mind.

A. down

B. to

C. up

D. of

Câu 4: Our study is very important____________ our future and useful_____________ our country.

A. for/ for

B. to/ to

C. for/ to

D. to/ for

Câu 5: A sign warned motorists ______ dangers.

A. of

B. for

C. about

D. a and c

Câu 6: He wore a hat, which made him look _______________ a spy.

A. like

B. up

C. after

D. back