用方框中所给单词的适当形式填空，使对话通顺、正确。每词仅用一次。

A: Where will you live in the future?

B: I'll live in the village.

A: Why do you think so?

B: Because cities will be more crowded and  .

A: How do you deal with the  then?

B: I'd like 1to plant more trees and flowers.

A: But I'd like to live in cities. I think  in cities is better.

B: Do you think the environment will be better?

A: Yes. Our government and our people will do something  to protect it.