英语填空：如下：
J:___ is my watch,Mom?
M:It ___ ___the sofa.
J:Where ___ my pencil and eraser?
M:___ they ___ your pencil case?
J:No,they ___.
M:Are they ___ the desk?
J:Yes,they are.Where ___ my backpack?
M:Is it is.___ you,mum.
J:You should look after your things well.