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Idon'tknow____hewillcometomorrow.Don'tworry.____hecomes.I'llletyouknowA.whether.IfB.if,WhetherC.when,WhetherD.that,if
题目内容：
I don't know____he will come tomorrow.Don't worry.____he comes.I'll let you know
A.whether.If B.if,Whether C.when,Whether D.that,if优质解答
A 因为whether与前面的句子不要用逗号隔开,而if却要用逗号隔开.
A.whether.If B.if,Whether C.when,Whether D.that,if
优质解答
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