They're helping Mother with the housework.怎么改为附加疑问句
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They're helping Mother with the housework.怎么改为附加疑问句
They're helping Mother with the housework,aren’t they?
aren't they?
aren't they?
They're helping Mother with the housework.怎么改为附加疑问句
They're helping Mother with the housework,aren’t they?
aren't they?
aren't they?