The child asked his mother ____ go out to play tennis.A whether he could B.if he could 选谁
问题描述：
The child asked his mother ____ go out to play tennis.A whether he could B.if he could 选谁
答
在这句话中两个都对,没有区别呀
不过,当句中有OR NOT ,或放句首时不能用IF,只能用WHETHER