these coats are yeiiow变单数形式
these coats are yeiiow变单数形式
are these old coats 改为单数句
These boxes are brown.变单数
These are my friends .变单数
These are bedrooms.(变单数)
these coats are different side
(a) These coats are different______size.
these are new books.改为单数形式
these are chinese books 改为单数形式
These are Chiese buses.变为单数形式
are these apples?改为单数形式
Are these sheep怎么改为单数形式