it remains a mystery __when the murdet happened that day A where he was B where was he C in which he was D in which was
问题描述:
it remains a mystery __when the murdet happened that day A where he was B where was he C in which he was D in which was he
选什么为什么
答
选A
这是一个主语从句,原句是这样:Where he was when the murder happened that day remains a mystery .由于主语过长,所以他把主语放到了后面,前面用it代替做了形式主语,而后面的是真正的主语.in which 不能引导主语从句,从句中要用陈述语序,所以选A整句意思是:当谋杀发生的时候他在哪依然是个谜。