1. 用方框中所给词的适当形式填空

weapon   danger   power   pollute   agree

1. （1） I think that is right, but somebody with me.
3. （2） We must stop the of our air.
5. （3） Don't play football on the road. It's .
7. （4） Knowledge is .
9. （5） They took the away before the soldiers arrived.