假如你是李华，准备下月去新西兰某中学做交换生。你在网上看到Smith夫妇愿给交换生提供食宿，请你给他们写封邮件。

Mr  Smith：

      Hello, Smith。 My name is li hua。 I will go to New Zealand middle school as an exchange student next month。 I read on the Internet that you are willing to provide accommodation for exchange students。 I 

      would like to ask if I need any proof。 What about utilities? How about the life safety factor over there? How much is a semester?

      Please tell me what else I should pay attention to。 

      Looking forward to your reply。

                                                                                                                LiHua