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最佳答案:Dear teacher ,I am writing to you to express my thanks for your help in learning
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最佳答案:In the early twentieth Century, we were forced to turn to the theoretical study
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最佳答案:Dear Miss Wang,I'm writing this letter to appreciate your help in my English.My
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最佳答案:Dear Teacher,It's really hard to say goodbye with you. I remember how good you t