假如你是高一学生王刚，在放寒假之前你想写一封信给你的英文老师Mrs. Chen。
信的内容应包括以下几个方面：
1） Mrs.
Chen的课堂生动有趣，自己进步很大；
2）
自己在学习中的困难；
3）
给老师的教学建议(至少两条)；
注意：1）不要逐条翻译;
2）字数为120左右，开头和结尾已经给出，不计入总词数；
3）不得使用真实姓名。
Dear Mrs. Chen,
How time flies! I have been your student for nearly
half a year.
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Best wishes to you!
Yours,
Wang Gang