选项

题目

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

答案

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