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: 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 2: When the bank refused to lend us any more money we realized we'd reached the end of the road.

A. give

B. hold

C. take

D. borrow

Câu 3: In the first two decades of its existence, the cinema developed rapidly.

A. leisurely

B. slowly

C. weakly

D. shortly

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 think it's important to listen to both sides of the argument.

A. hear

B. speak

C. advise

D. pay attention to

Câu 6: The whole conference was totally disorganized - nobody knew what they were supposed to be doing.

A. someone

B. nothing

C. no one

D. something