仿照例句用所给的词汇造句。

例：she, not at home that evening, she, look after her sick child in hospital

       She wasn't at home that evening. She was looking after her sick child in hospital.

A. it, rather chilly yesterday, the sun, not shine

B. she, ill that day, she, suffer from a severe headache

C. I, not say anything, but a struggle (斗争), go on in my mind

D. We, be rather busy then, we, make preparation for the journey

火电厂供氢站的火灾危险性为甲类。（）