Câu hỏi: We offer a speedy and secure service of transferring money in less than 24 hours.

A. uninterested 

B. unsure

C. open

D. slow

Câu 1: You did a beautiful thing in helping those poor children.

A. meaningful

B. good

C. terrible

D. positive

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

A. lively

B. frequented

C. accessible

D. revealed

Câu 5: The doctor advised Peter to give up smoking.

A. stop

B. continue

C. finish

D. consider

Câu 6: Using Facebook, you can post update sayings about your life every day.

A. locate

B. displace

C. establish

D. put up