Whose are these?----They are______ books.A.teacher B.teachers' C.teacher's

Whose keys are these? whose sunglass are these? whose are these pencils?和whose pencils are these? whose pens are these?还是whose are these pen?区别? whose are these dirty shoes? whose ______ (photo) are these whose are these 怎么回答 whose+checks+are+these是什么意思 Whose are these clothes?改为同义句.（ ) ( )are these? whose are these clothes 同义句_________ ___________ are these. Whose shoes are these怎么回答 whose books are these?They're t______ Whose are these shoes?Theylook like ( ). these are their books .用whose提问 Whose books are these?这句话对吗? Whose books are these同义句改写 Whose clothes are these换一种说法 Whose pens are these?(Betty)They____________.