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Mom'sshoesisnotnew敢肯定句和否定句mydeskisclean改否定句和疑问句thisisalongruler?改肯定句和否定句

题目详情
Mom's shoes is not new敢肯定句和否定句
my desk is clean改否定句和疑问句
this is a long ruler?改肯定句和否定句
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答案和解析
答案:
1.mom's shoes are not new(shoes为复数)
肯定句:mom's shoes are new.
句子本身为否定句.疑问句为:are mom's shoes new?
1.my desk is clean
否定句:my desk is not(isn't) clean.
疑问句:is my desk clean?
2.this is a long ruler?
否定句:this is not(isn't) a long ruler.
实际上句子本身除掉问号就是肯定句.疑问句应该是:is this a long ruler?