Read the following classical Chinese and complete 1 ~ 4 questions. Xu Xuan, a native of Guangling, Yangzhou. You can be a writer at the age of ten. Don't wander around. Is the school bookkeeper, and

2.B

3.A

4.( 1) This trip may not guarantee rescue. Jiangnan relies on reinforcements. Why did he stop?

(2) One morning, Xu Xuan got up and dressed neatly (wearing a hat and a belt around his waist). Suddenly, he was in a hurry to come with a pen and paper, write down (last words) by himself and explain the aftermath.