Câu hỏi: The plane took___________ very quickly.

A. of

B. off

C. to

D. up

Câu 1: If there was a technical failure, Gagarin might never get __________ to the Earth.

A. to

B. back

C. from

D. down

Câu 2: The river Rhine flows _____ the North sea.

A. to

B. into

C. in

D. for

Câu 3: We areall aware____________ the importance of the environment protection.

A. of

B. about

C. to

D. of

Câu 4: Are you acquainted _____ the lady?

A. with 

B. about

C. to

D. at

Câu 5: The computer isn’t working. It broke____________ this morning.

A. down

B. in

C. with

D. at

Câu 6: We’ll buy a smaller house whenthe children have grown____________ and left home.

A. to

B. up

C. at

D. for