搜狗做题网the old lady didn't know ___ when the house caught fire.
来源：学生作业帮 编辑：搜狗做题网作业帮 分类：英语作业 时间：2024/06/03 05:32:56
the old lady didn't know ___ when the house caught fire.
A.how to do B.how to do it C.what to do D.what to do it
A.how to do B.how to do it C.what to do D.what to do it
选C,从题意来看,是不知道做什么
如果选B,how to do it,这里的it 缺少指代的对象.
再问： it 不是指代后面从句的内容吗？
再答： No，不是。it跟在do的后面，是指你做的事情（比如救人、救火），而后面的从句是用于时间状语，表时间的（当房子着火的时候），不是表示做的事情。
如果选B,how to do it,这里的it 缺少指代的对象.
再问： it 不是指代后面从句的内容吗？
再答： No，不是。it跟在do的后面，是指你做的事情（比如救人、救火），而后面的从句是用于时间状语，表时间的（当房子着火的时候），不是表示做的事情。
the old lady didn't know ___ when the house caught fire.
1.The old lady didn't know ( ) when the house caught fire
The old lady didn't know___when the house caught fire.为什么选C啊
The old lady didn't know___when the house caught fire.A how
The girl didn't know（）when the house caught fire.填空
14.The old man didn’t know _______ when the house caught fir
The old lady did not know ____when the house caught fire.
He didn't know ____when the house caught fire.A how to do it
he didn't know_____ when the house caught fire.A.what to do
The old lady looked ___ at the dirty boy and didn't know wha
The old lady didn't know ( ) when she lost her way
The old lady did not know ___________when the house caught f