These are old chairs(改为单数句子)
These are old chairs(改为单数句子)
are these old coats 改为单数句
These firemen are very helpful.(改为单数句子)
These are our sheep. (改为单数句子)
These men are policemen.【改为单数句子】
These are my photos.改为单数句子
these are our apples改为单数句子
These are some old photos.改为单数句
These are boxes. (改为单数句)
These are oranges.(改为单数句)
These are English students(改为单数)
These are our desks and chairs.变为单数