But she says there is a lot of competition,so it is impossible for parents not to do so.这里not 可以直接加to 为什么?
问题描述：
But she says there is a lot of competition,so it is impossible for parents not to do so.这里not 可以直接加to 为什么?
答
当然可以了.it is impossible to do so （这样做是不可能的）
it is impossible not to do so （一定要这样做）
都对,但是意思不一样.