i don't konw if or not he likes my MP4 player 哪里错了?
问题描述：
i don't konw if or not he likes my MP4 player 哪里错了?
答
if 改为whether.whether和if常用来引导宾语从句,这时两者的含义区别很小,一般可通用.例如：①I don't know whether/if they will come to help us.我不知道他们是否来帮助我们.②I am not sure whether/if I'll have...