单项选择：---He hasn't come yet.What do you know______?---No idea.选项：A.was hanppened to him B.has happened to him C.did he happen D.has he happened请问选那个?为什么?
问题描述：
单项选择：---He hasn't come yet.What do you know______?---No idea.
选项：A.was hanppened to him B.has happened to him C.did he happen D.has he happened请问选那个?为什么?
答
选B。
happen不及物，无被动，排除A
do you know为插入语，可删除，删除后CD语序不对。
综上，选B
答
---He hasn't come yet.What do you know______?---No idea.
选B
happen的词组是【sth happen to sb】,而且是不及物动词,所以没有被动,所以AC都不对
另外宾语从句要用陈述句语序,即【主语+谓语+宾语】
所以只能用B