I didn't know she could swim 中为什么用could

来源：学生作业帮助网编辑：六六作业网时间：2024/07/10 10:22:04

Ididn''tknowshecouldswim中为什么用couldIdidn''tknowshecouldswim中为什么用couldIdidn''tknowshecouldswim中为什么用could因

I didn't know she could swim 中为什么用could
I didn't know she could swim 中为什么用could

I didn't know she could swim 中为什么用could
因为前面用了didn't,一句话中的语态要一致