用适当的介词填空。

1. We can see the moon          night.    

2. There are many people          Center Street.    

3. People go to work          Mondays.    

4. Tony! Don't play           dogs.    

5. They have a lot of fun           the holiday.    

6. He often writes letters           his parents.

7. Is your new classmates           Wuhan?    

8. Thank you          telling me the news.

9. Today is Sunday, so she is          her home.    

10. There's a chair          the two trees.

计算题：已知压缩机的吸入压力为0.07kg/cm，吸入温度为40℃，压缩机的能力为12500NM³/H，假定压缩机气体为单一组分丁二烯，试求压缩机每小时输送的物料为多吨？（12500NM³/H标准情况下0℃，1个大气压下压缩机的吸入能力）