we all want to konw —— the famous writer will come to our school _英语解答

we all want to konw —— the famous writer will come to our school or not
填 if 还是whether,为什么?

人气：222 ℃　时间：2020-04-04 17:26:36

解答

whether
如果后面没有 or not,if 和 whether 都行,有 or not 只能填whether.