The girl didn't know()when the house caught fire.填空
问题描述:
The girl didn't know()when the house caught fire.填空
答
The girl didn't know_what to do __when the house caught fire.
因为:
how:对行为方式表示提问,是疑问副词。
how to do:怎么去做,do后要有宾语。
what:对行为内容表示提问,是疑问代词。
what to do:做什么,what即是do的宾语
答
what to do 有什么问题可以问题继续我