根据句意及所给首字母，完成单词。

1. I need a room with windows f_____ the sea.

2. We have little money, so we should make fund r_____.

3. A s_____ room with double beds costs￥160.

4. Maria looked t_____ the east and smiled.

5. Riding bikes can a_____ air pollution.

独立设计和主持修筑我国第一条铁路干线——京张铁路的总工程师是李四光。

错误：          _________改正：            _________