禁止进入储有煤粉的煤粉仓内进行工作。清扫煤粉仓前，应与（）取得联系，把仓内煤粉用尽并放光。

A.运行班长

B.值长

C.运行人员

D.检修班长

用适当的词填空。

1. January is the _________ month of the year.

2. February is the _________ month of the year.

3. December is the _________ month of the year.

4. _________ is the third month of the year.

5. _________ is the fourth month of the year.

6. _________ is the fifth month of the year.