Câu hỏi: My cousin tends to look on the bright side in any circumstance.

A. be optimistic

B. be pessimistic

C. be confident

D. be smart

Câu 1: Her father likes the head cabbage rare.

A. over-boiled

B. precious

C. scarce

D. scare

Câu 2: Population growth rates vary among regions and even among countries within the same region.

A. restrain

B. stay unchanged

C. remain unstable

D. fluctuate

Câu 3: The dim light made it hard to see, so Ben squinted to make out the stranger’s face in the distance.

A. faint

B. muted

C. weak

D. strong

Câu 4: Solar energy is not only plentiful but also infinite.

A. without limit

B. boundless

C. limited

D. indefinite

Câu 5: A chronic lack of sleep may make us irritable and reduces our motivation to work.

A. uncomfortable

B. responsive

C. calm

D. miserable

Câu 6: He is among wealthy members of the golf club.

A. adroit

B. affluent

C. adjacent

D. poor