i tried to give him some help when necessarily.为什么句中主从句主语不一致却可省略从句when后的it is那什么是主语一致是省略的
问题描述:
i tried to give him some help when necessarily.
为什么句中主从句主语不一致却可省略从句when后的it is
那什么是主语一致是省略的
答