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

A. because

B. let alone

C. instead of

D. so that

Câu 1: Socially, the married _______ is thought to be the basic unit of society.

A. couple

B. pair

C. twins

D. double

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

A. key

B. response

C. agreement

D. demand

Câu 3: I do not think there is a real ______ between men and women at home as well as in society.

A. attitude

B. value

C. measurement

D. equality

Câu 4: Professor Berg was very interested in the diversity of cultures all over the world. (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. variety

B. changes

C. conservation

D. number

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: Some researchers have just _______ a survey of young people's points of view on contractual marriage.

A. sent

B. directed

C. managed

D. conducted