句型转换。

1. I don't think he is a teacher, ____ ____? (完成反义疑问句)

2. She paid 100 yuan for the coat. (改为同义句)

    She ____ 100 yuan ____ the coat.

3. Tom gets a letter from his father every month. (改为同义句)

    Tom ____ ____ his father every month.

4. Tony doesn't know which book he should choose. (改为同义句)

    Tony doesn't know which book ____ ____.

5. To spit everywhere is impolite. (改为同义句)

    ____ is impolite ____ spit everywhere.

以下属于地方行政制度的政治作用的有（）

A、对国家政治统治的持续和稳定有重要影响

B、有助于促进民主政治的发展

C、为居民提供一个安定的生活环境和工作环境

D、有利于中央政府完成对公共事务的管理