阅读对话,根据横线后所给标点符号的提示,在横线上填写适当的句子,使对话完整.
Larry:What beautiful pictures!
Mike:No,they are not pictures.They are stamps.
Larry:Stamps? (1) ?
Mike:They're used for posting letters.
Larry:(2) ?
Mike:I've got more than 700of them.
Larry:How long have you been collecting them?
Mike:I've been collecting them since I was five years old.
Larry:How are you going to do that?
Mike:I'm going to study art really hard and go to an art college.
Larry:I hope your dream can come true.
Mike:(3) .