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

A. to

B. back

C. from

D. down

Câu 1: These photographs were taken _____ a friend of mine.

A. to

B. for

C. by

D. of

Câu 2: He's not very keen _____ watching football, but his wife is.

A. on

B. at

C. to

D. for

Câu 3: It was not a problem. We looked____________ his number in the telephone book.

A. up

B. for

C. to

D. after

Câu 4: We areall aware____________ the importance of the environment protection.

A. of

B. about

C. to

D. of

Câu 5: I shall meet you _____ the corner _____ the street.

A. in/ of

B. to/ of

C. at/ on

D. at/ of

Câu 6: I waited _____ 10 o'clock and then went home.

A. until

B. to

C. for

D. in