Whose keys are these?

Whose keys are these? whose keys are these?they are y什么 keys. Whose keys are these?They’re Lucy’s.是什么意思? 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? These are keys?是疑问句吗 These are my keys.改成一般疑问句 these are your keys 改为单数句 what are these keys ( for 还是to Are these your keys?做否定回答 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 These are her keys的同义句：These keys are（ ）. What _____ these keys?Are these yours?用介词填空 Whose are these clothes?改为同义句.（ ) ( )are these?