选项We don't know __________A.if will he come on time B.if wou

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选项
We don't know __________
A.if will he come on time B.if would he come on time
C.if he will come on time D.that will he come on time
顺便判断这个句子是否是宾语从句
宾语从句不是转述别人的话吗?
搞不懂

我不知道是否他能按时到达
if做“是否”讲相当于wether 引导宾语从句
C
再问：为什么这是宾语从句啊？不是说要转述吗？他没转述啊？
再答：宾语从句不一定是转述别人的话包括很多种情况最基本的理解是宾语从句情况中从句整体在全句中做宾语成分以这句话为例，我不知道XXX。这个XXX就是句子的宾语，但这个XXX是什么呢，是“是否他能按时到达”，这是一句话，不能用一个名词来表达，只能用一个句子，也就是从句所以XXX“.if he will come on time ”是宾语从句要去上课了有点仓促希望你能看懂

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