阅读下面材料，在空白处填入适当的内容（不多于3个单词）或括号内单词的正确形式。

Christmas is no fun when you're poor．Twenty years ago I was a young,  小题1:  （struggle）,substitute（替补） teacher whose calls into work had been few．Money was tight, bills were due     小题2:   my wife and I couldn't even afford to get Christmas gifts for each other．The only gifts we could get for our children were a few soft toys that I had found     小题3:   （sell）at half price in the supermarket．I opened the door and brought in the gifts I     小题4:   （hide） in our old car's trunk．Then I handed     小题5:    to my son and daughter．I watched with a sad smile as they did their best to tear off the wrapping(包装） paper．As they pulled out their toys, though, I noticed their   小题6:  lit up and they jumped up and down．My daughter   小题7:   （happy） hugged her toy and then hugged her Mom and me as well．I laughed as I watched my children play with their toys _ 小题8: _ hours, and Thanked God for the ． 小题9:_ （great） bifilar ever been given．Till today I still treasure      小题10:     gift of pure love that my son and daughter gave me that day．

按事故的性质可分为哪些类型？（）

A．责任事故 

B．非责任事故 

C．自然事故 

D．破坏事故 

E．技术事故