he cleand his shoes一般疑问句,否定句,以when开头的特殊疑问句

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he cleand his shoes一般疑问句,否定句,以when开头的特殊疑问句
he cleand his shoes一般疑问句,否定句,以when开头的特殊疑问句

he cleand his shoes一般疑问句,否定句,以when开头的特殊疑问句
Did he clean his shoes?
He didn't clean his shoes.
When did he clean his shoes?

疑问 :did he clean his shoes?
否定:he didn't clean his shoes.
when did he clean his shoes?