I am an English girl. My name is Mary. I’m twelve. My dad and mom are English teachers. I have a brother（哥哥）. His name is Tom and he is thirteen years old. We are in China now. We are in Beijing No. 4 Junior High School. Tom is in Class 4, Grade 7 and I am in Class 9, Grade 7. I have a dog. My dog looks strong. It has a big mouth and two big black ears. We have many(许多) Chinese friends here. They are good.

— Who is that little boy?

—             （  ）

在一次鉴定活动中，某人持有《玄秘塔碑》，专家鉴定组介绍它的特点是“方折峻丽，骨力劲健”。你知道它的作者吗(      )

根据意思写词语。

决定生存或死亡的最危急、最关键的时刻。____。                                                             

城市、村庄遭受破坏或灾害后变成的荒凉的地方。____。