Câu hỏi:

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 1:

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

A. locate

B. displace

C. establish

D. put up

Câu 2:

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

A. lively

B. frequented

C. accessible

D. revealed

Câu 3:

The earth is being threatened and the future looks bad.

A. done

B. made

C. protected

D. varied

Câu 4:

Barry seems happy enough working for himself.

A. funny

B. satisfied

C. upset

D. interested

Câu 5:

I have a modest little glass fish tank where I keep a variety of small fish.

A. moderate

B. limited

C. narrow

D. large

Câu 6:

She must be very strong to carry such a weight on her back.

A. weak

B. musculous

C. sick

D. healthy