1 . —Many animals are in great danger, so they need our ________.
—I agree with you. Our government has done a lot for them.

A．protection

B．population

C．preparation

2 . Nowadays, more and more people are paying attention to the ________ of environment.

A．population

B．pressure

C．protection

3 . —What’s the p______________________________ of China?        
—It’s about 1.4 billion.

4 . The population of China ________ large. About four fifths of the population ________ farmers.

A．is; are

B．are; is

C．are; are

5 . There are about 1.4 billion people in China.（对划线部分提问）
________ the ________ of China?

6 . —What’s the p__________ of London?
—About seven and a half million.