Câu hỏi: We need to set ___________ early tomorrow.

A. off

B. of

C. for

D. to

Câu 1: We’ll buy a smaller house whenthe children have grown____________ and left home.

A. to

B. up

C. at

D. for

Câu 2: We areall aware____________ the importance of the environment protection.

A. of

B. about

C. to

D. of

Câu 3: Are you acquainted _____ the lady?

A. with 

B. about

C. to

D. at

Câu 4: I waited _____ 10 o'clock and then went home.

A. until

B. to

C. for

D. in

Câu 5: I always come _____ school _____ foot.

A. to/ on

B. to/ by

C. to/ with

D. at/ on

Câu 6: These photographs were taken _____ a friend of mine.

A. to

B. for

C. by

D. of