must +have +done造句,一句要超过20个英文字尽量使用简单的词汇文法必须正确求求大大

问题描述:

must +have +done造句,一句要超过20个英文字
尽量使用简单的词汇
文法必须正确
求求大大

I noticed that he did not wear a watch and realized that he must have lost it on his way home.