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:

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:

I've put the cake on a high shelf where he can't get at it.

A. low

B. untouchable

C. far

D. difficult to reach

Câu 4:

In the first two decades of its existence, the cinema developed rapidly.

A. leisurely

B. slowly

C. weakly

D. shortly

Câu 5:

Barry seems happy enough working for himself.

A. funny

B. satisfied

C. upset

D. interested

Câu 6:

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

A. moderate

B. limited

C. narrow

D. large