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

A. after

B. up

C. to

D. through

Câu 1: He was very respectful at home and _______ to his parents.

A.  responsible

B. caring

C. obedient

D. lovely

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: A curriculum that ignores ethnic tensions, racial antagonisms, cultural _______ and religious differences is pot relevant.

A. diversity

B. contacts

C. barriers

D. levels

Câu 4: It is not easy to ________ our beauty when we get older and older.

A. develop

B. maintain

C. gain

D. collect

Câu 5: Mr. Pike held his wife's hands and talked urgently to her in a low voice, but there didn't seem to be any response. (Mark the letter A, B, C, or D to indicate the word or phrase that is CLOSEST in meaning to the underlined part in each of the following questions.)

A. feeling

B. emotion

C. reply

D. effect

Câu 6: I put your keys in the drawer _______ they cannot get lost.

A. because

B. let alone

C. instead of

D. so that