Mr smith is busy every day .He often says,'' I()busy.I want to have a rest中括号里是什么?

问题描述:

Mr smith is busy every day .He often says,'' I()busy.I want to have a rest中括号里是什么?

had

I ( am ) busy.
有不明白的地方再问哟,祝你学习进步! (*^__^*)

am