whose ______ (photo) are these

whose ______ (photo) are these Whose _____(Walkman)are these?Are they the ______(twin)? whose sunglass are these? ----Whose trousers are these? Whose shoes are these Whose clothes are these Whose gloves are these what are these?or whose are these? whose are these pencils?和whose pencils are these? Whose camera are these? Whose camera are these?什么意思? whose pens are these?还是whose are these pen?区别? 1.are jackets whose these