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

A. base

B. floor

C. basement

D. ground

Câu 2: I believe that he was concerned ______ all those matters which his wife mentioned.

A. with

B. over

C. upon

D. above

Câu 3: One of Vietnamese traditions is a belief in _______ families and in preserving their cultures.

A. wealthy

B. secure

C. safe

D. close-knit

Câu 4: He was very respectful at home and _______ to his parents.

A.  responsible

B. caring

C. obedient

D. lovely

Câu 5: You should not burn _______. You had better dig a hole and bury it.

A. dishes

B. lab

C. garbage

D. shift

Câu 6: Socially, the married _______ is thought to be the basic unit of society.

A. couple

B. pair

C. twins

D. double