She didn't finished her homework until I returned.(didn't后为何不用原型,跟not until有关吗?)就是此处finished为何不是原型

问题描述:

She didn't finished her homework until I returned.(didn't后为何不用原型,跟not until有关吗?)
就是此处finished为何不是原型

就是原型,题错了。

你现在讲这句话时,你return这件事已经过去了了,

题目出错了,应该是原型