I really don't know if they a party tomorrow.If the

来源：学生作业帮编辑：作业帮分类：英语作业时间：2024/05/09 06:44:19

I really don't know if they ____ ____a party tomorrow.If they____
I really don't know if they will have a party tomorrow.If they____(do还是have),I will call you.

do
【语法上讲,have 也没错,但是最优,选do,如果还能选,最优是选will.
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