Are these pianes

Are these pianes They are -------(he)pIanes,The white ones are --------(i) the a----- is near our shool .there are many pianes there. There are some loy pianes in the box.(改为一般疑问句） 1.There are a lot of pianes at the a____.2.Let's g____and se Are those Cheng Hai 's model pianes 改为单数怎么改?Is that her alar Are these what are these ? These are ( )? these are his shoes.( )are these ()? These are her books.These books are what are these?or whose are these? These are t books.