HE cleaned his room just now(变一般疑问句,并做肯定否定回答

题目

HE cleaned his room just now(变一般疑问句,并做肯定否定回答
( )he( )his room just now?
Yes,( )( ).
No,( )( )

答案

疑问：did he clean his room right now
肯定：yes,he did
否定：no,he didn't
这是过去试的肯定句
改很简单
按照一般现在时的改法
PS：一般疑问句是用do does
而过去时使用did
加油