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whether he will arrive in here

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whether he will arrive in here tomorrow,i'm not sure.
为什么用whether不用if？
whether he will arrive in here
解题思路： 此题属于记忆性知识的考察，平时在理解的基础上多加练习
解题过程：
if和 whether 都可以的
if和whether 都有“是否”的意思，做“是否”解时，可以互换，用于引导宾语从句。但当与or not 连用时，只能用whether。即whether.....or not 固定搭配。
再如：I am not sure if she will come.
I am not sure whether she will come (or not).
he will arrive here this evening he will be here this evenin I don’t know when he (arrive). When he (arrive) here, I will arrive用法问题he will be arriving here.he will be arriving home. ______Tom arrive in beijing tomorrow,he will telephone me 英语 将来式they will be arriving here tomorrowthey will arrive he They will arrive here (in a month).对划线部分提问（ ）（） will they ar he said he ---【arrive】 here in two days用括号内单词适当形式填空 改错1.The train from Shanghai will arrive here in time 2.She s My parents will arrive here in two days.改成一般疑问句 ( ) ( )Paren what time will you arrive here? I WILL ARRIVE HERE BY TEN. He _____(arrive) here two minutes ago.