Câu hỏi: We ought to keep these proposals secret from the chairman for the time being.

A. lively

B. frequented

C. accessible

D. revealed

Câu 1: Certain courses are compulsory; others are optional.

A. voluntary

B. free

C. pressure

D. mandatory

Câu 2: The earth is being threatened and the future looks bad.

A. done

B. made

C. protected

D. varied

Câu 3: Population growth rates vary among regions and even among countries within the same region.

A. fluctuate

B. stay unchanged

C. restrain

D. remain unstable

Câu 4: Using Facebook, you can post update sayings about your life every day.

A. locate

B. displace

C. establish

D. put up

Câu 5: I’d like to pay some money into my bank account.

A. withdraw some money from

B. put some money into

C. give some money out

D. leave some money aside

Câu 6: Mr. Smith’s new neighbors appear to be very friendly.

A. amicable

B. inapplicable

C. hostile

D. futile