改句子：例 I am tired.改为 He is tired.I shall.
问题描述：
改句子：例 I am tired.改为 He is tired.I shall.
例 I am tired.改为 He is tired.I shall.see you tomorrow.改为?I can understanyou 改为?I must write a letter 改为
用He作主语
答
he shall see you tomorrow
he can understand you
he must write a letter