假设你是李华，暑假通常你会和Lisa一起去度假。今年你们打算邀请在北京学习的美国朋友Ben和你们去海南三亚度假。请根据下面的要点给写一封E-mail向Ben发出邀请。
要点：1. 海南三亚度假两周；
2. 参加一周的潜水课程；
3. 周四之前回复是否加入；
4. Lisa负责预定航班和酒店。
注意：1. 词数为100左右；
2. 可以适当增加细节，以使行文连贯；
3. 信的开头已为你写好（不计入你所写词数）。
Dear Ben,
Time goes fast. Another summer is coming again.
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Yours,
Li Hua
Dear Ben,
Time goes fast. Another summer is coming again.
Lisa and I will go on vacation as usual. We always want to go to Sanya in Hainan province and have planned to spend two weeks there. We would be delighted if you could join us on this trip. The first week we will take a diving course. If you want to participate then I need you to reply by Thursday. Just Imagine swimming underwater with the fishes!—I can’t wait! Don’t worry about the details, as Lisa will take care of booking the plane tickets and reserving the hotel.
We hope you decide to come along. It will be wonderful to see you again and we will have a great time.
Yours
Li Hua
这是一篇邀请信，切入点容易找，要点清晰。要求学生作文包含所列要点，邀请朋友Ben来一起度假，话题贴近学生生活，便于学生写作，写作时要灵活使用所学动词，添加适当的连词使文章更连贯，同时高级的词汇和句型也要适当运用。