1. 用方框内所给词的适当形式完成下列句子（有一项多余）

two fifths of    cause   serve    pollute   noise    beautiful

1. （1） With more and more cars and buses, there will be more and more .
3. （2） I don't like pop music because I think it is too .
5. （3） the workers are men in the factory.
7. （4） This restaurant offers good .
9. （5） I think Beijing is one of the places in the world.