My pants are too short and old,so I want to buy a new ——.

my pants are too old .i want ____________（buy)a new pair. Mom,my shoes are too old,I want to buy a new____ A.one B.one Dad ,my trousers are old .I want to buy a new _____. a ) tro My trousers are too old .I want to buy a new__ Mum,my trousers are old.I want to buy a new ____. My trainers are very old,I want to buy a new one.改错 I lost so much weight that my old pants are too loose to wea The chairs are too old.I want to buy some new() My shoes are too old.I want to buy some new_____. the old shoes are too small for me.i want to buy a new_____ （1） My bag is too o( ).I want to buy a new one. The sofa is very old and uncomfortable .I want to buy a new