Whether if that的用法.
问题描述：
Whether if that的用法.
答
whether=if是否+从句,不可省略.
that+从句时,that可以省略.指的是他们有什么区别？你只要记得我写的这个，就不会错Thank you all the samemy English group is waiting for you. 345942455But i don /t know what to do？