书面表达。（8分）
请你以David的身份给Mary写一封信, 介绍你自己和你家人的情况。你可以谈谈他们的工作和他们所喜欢的食品。信的开头和末尾已经给出。你需要用下面的提示词: family, sister, happy, teacher, doctor, fish, hamburgers, vegetables。要求60词左右。
Dear Mary,
I’m David.I’m from England.________________________________________
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Yours,
David