Câu hỏi: While I am waiting _______ my bus, I often listen _______ music.

A. on / at

B. for / to

C. toward / about

D. upon / in

Câu 1: The computer allows us to work fast and _______.

A. efficiently

B. differently

C. variously

D. freshly

Câu 2: The ______ to success is to be ready from the start.

A. key

B. response

C. agreement

D. demand

Câu 3: It's hard work looking _______ three children all day.

A. after

B. up

C. to

D. through

Câu 4: He was determined to give his family a secure and solid _______.

A. base

B. floor

C. basement

D. ground

Câu 5: It is not easy to ________ our beauty when we get older and older.

A. develop

B. maintain

C. gain

D. collect

Câu 6: Affected by the Western cultures, Vietnamese young people's attitudes _______ love and marriage have dramatically changed.

A. for

B. with

C. through

D. towards