Whose tapes are these?和Whose tapes are they?的区别.

Whose tapes are these?和Whose tapes are they?的区别. whose pens are these?还是whose are these pen?区别? whose are these pencils?和whose pencils are these? whose are these pencils?和whose pencils are these?有什么区别? 改错 These are her videos tapes Are these tapes?怎样否定回答 these are our tapes?改为一般疑问句 whose ...are they?的are whose books are these?They're t______ whose sunglass are these? ----Whose trousers are these? Whose shoes are these