A man wanted to buy a hat, so he went to a hat shop and spoke to the assistant,“I ____1____ buy a hat, please,”he said.“Can I try on ____2____, please?”

　　“Of course,”the assistant answered and he brought ____3____ several hats.

　　The man ____4____ one by one but he didn't like ____5____ of them.“This one is too big and this one doesn't ____6____ very nice and this one must be too cheap. Would you mind bringing ____7____ hats, please?”“____8____,”the assistant said. He went to the back of the shop and brought out some more hats.“Let's try this one,”the man said.“No, I'm afraid it's too wide.”“What about this one?”“No, I'm afraid it isn't ____9____. None of the hats are the right size,”the man said.“The assistant was very angry now.”“The hats are all right, sir,”he said,“but I'm afraid your ____10____ isn't the right size.”