Piggy wanted to have hamburgers."can I ( ) a hamburger,Mum?"

Piggy wanted to have hamburgers."can I ( ) a hamburger,Mum?"he asked."OK.But I ( ) to ( ) a 接下面hamburger,too.Go and buy two ( ).Here's the ( )"said Piggy's mother."what ( ) I do for you?"asked the food shop keeper."I'd ( ) two hamburgers.Here's the ( )".said Piggy."But you canonly ( ) one big hamburger and one small hamburger,"said the shop keeper."here'sthe hamburger ( ) you,"said Piggy.He gave the small hamburger to his mother.Then he ate the big one.His mother was not happy.She said,"Yours is much ( ) than ( ).