来源:学生作业帮 编辑:神马作文网作业帮 分类:英语作业 时间:2024/11/07 08:36:01
when to do和 when doing的区别是什么
when doing 当做.事情时 如when doing the exam,we should be careful.实际上这里完整一点的说是这样when (we are) doing the exam,we should be careful.
而when to do何时做.如she will tell you when to do it.