I don't know _ he will come tomorrow．_ he co

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I don't know _________ he will come tomorrow．_________ he comes,I'll tell you．
选什么,为什么?

就选D!前半句是宾语从句,if当是否讲；后半句是真实条件句,if当如果讲.其实,做这道题时,最好确定的是后半句,真实条件句的结构：if从句用一般现在时,主句用将来时.这样,很容易锁定答案的.

I don't know _________ he will come tomorrow．_________ he co I don't know _________ he will come tomorrow._________ he co 1.I don't know _________ he will come tomorrow._________ he I don’t know when he _________ tomorrow.If he _________,I’ll I don't know if he will come tomorrow. I don't know if he will come tomorrow i think he if he free He is very busy.I don't know if he will come or not tomorrow I don't know __ he will come tomorrow.___he comes,I'll let y I don*t know if he will come tomorrow 宾语从句不懂哪个 I don't know if he ___(come) tomorrow.If he ____(come),I'll I don‘t know how soon he will come back 2.I don't know _________ the day after tomorrow.