—Look at these black clouds.It________soon.

—Sure.If only we________out.[ ]

A. is raining;   don't come  

B. is going to rain;   hadn't come

C. will rain;   haven't come  

D. is to rain;   won't come

确认工作必要性、工作人员安全资质和工作票上所填安全措施是否正确完备的审核人员应是哪类人员。（）

A.工作负责人

B.工作监护人

C.工作票签发人