76.I have no idea__she will be back.
问题描述:
76.I have no idea__she will be back.
为什么这里填when而不填that?
答
意思是:我不知道她什么时候会回来,可以说:
I have no idea that when she will be back.
that可以省略,when不可以省略,所以只能填when