He is worried about if she is OK 改错,错那里了?有四处可以改：A is B worried C about if D OK
问题描述：
He is worried about if she is OK 改错,错那里了?
有四处可以改：A is B worried C about if D OK
答
He is worried about whether she is OK.
答
C 改成 about wheather
答
改C处
改为about whether
这题主要考if和whether的区别.
你把if翻译成如果试试,意思就不对了,产生了歧义.
如果用whether就不会发生这种情况.