根据所给首字母及汉语提示完成下列单词。

1. The _____ (旅客) are waiting for the next bus at the station.

2. High-speed trains of the future will have no w______.

3. There isn't so much s_____ to put these tables in.

4. People use a m____ to order dishes (点菜) and to find information on a computer.

5. I've no idea how everything is going with my brother. I haven't r_____ any information from him.

6. What's the p_____ of the city? It's 50million. It's larger than that of ours.

7. He likes traveling a lot. He often goes a______ on holiday.

8. Mount Qomolangma is the highest m______ in the world. 

9. The word "r_____" has the same meaning as the word "garbage".

10. We should do our best to stop polluting to make the e_____ of our city cleaner.