Câu hỏi: You need to_______ the numbers properly in a column.

A. align

B. check

C. draw

D. write

Câu 1: The society was set up to______ endangered species from extinction.

A. prevent

B. distinguish

C. preserve

D. survive

Câu 2: He had a new heart valve _______.

A. added

B. supplanted

C. improved

D. implanted

Câu 3: I_______ George on my way home.

A. dropped in on

B. gear up for

C. pair up with

D. look back on

Câu 4: The waste water from bath, showers, sinks and_______, and rainwater can be collected in a tank.

A. linguistic

B. official

C. dishwasher

D. operate

Câu 5: Do you know the country which you has the hightest life_______ in the world?

A. expectancy

B. objective

C. desire

D. ambition

Câu 6: Some______ animals become tame if they get used to people.

A. wild

B. domestic

C. endangered

D. rare