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He did not know how to get away
He did not know what to say.
He did not know how to get away
He did not know what to say.
一些动词后，可以接 wh-特殊疑问词 + to do sth 作宾语，如：what, which, who, whose, when, where, how 等，注意：why 不可以用于该结构。
Millie has decided what she should read.
=
Simon forgot when he should meet his friends. =
Millie has decided what to read.
Simon forgot when to meet his friends.
“question words + to-infinitives”
Daniel didn’t say who he could talk to about this book. =
Daniel didn’t say who to talk to about this book.
Sandy is wondering what she should hand in. =
Sandy is wondering what to hand in.
Tip One: 介词不能省
Kitty cannot decide which she should choose first. =
Kitty cannot decide which to choose first.
Translation：
Millie has decided what to read.
Daniel did not say who to talk to about this book.
Simon forgot when to meet his friends.
Kitty cannot decide which to choose first.
Sandy is wondering where to ask for help.
Amy does not know how to write the report.
“疑问词 + 动词不定式”结构作动词的宾语。疑问词包括疑问代词who, what, which; 疑问副词when, how, where等.
wonder 想知道
explain 解释 explain sth to sb.
常和“疑问词 + 动词不定式”结构连用的动词和动词短语有: advise, ask, decide, discuss, find out, forget, know, tell, learn, remember, say, show, teach, think, understand, wonder, explain…
Andy doesn't know ____________.