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假如你是Sam，你的英国网友Tom今年九月份将作为交换生来常州学习。他给你写了一封信。请你给Tom写一封英文回信, 帮他解答疑惑。
Dear Sam,I’m very glad to have a chance to study in Changzhou this September. I hear there is a special day for teachers in China. I do think it’s a good idea, but still have the following questions:
1. When is Teachers’ Day? What’s the purpose and meaning of it?
2. What do students usually do on that day? As an example, what did you once do to celebrate it?
I really want to do something to join in this interesting festival. Looking forward to your guide and help.
Yours,
Tom
注意：1. 文中不得出现你的真实姓名和学校名称；
2. 表达清楚，语句通顺，意思连贯，书写规范；
3. 词数不少于100，文章的开头和结尾已为你写好，不计入总词数。
Dear Sam,
I’m very glad to share with you this special festival. __________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________
Wish you good luck in Changzhou.
Yours,
Sam
同类型试题
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
y = sin x， x∈R， y∈[–1，1]，周期为2π，函数图像以 x = (π/2) + kπ 为对称轴
y = arcsin x， x∈[–1，1]， y∈[–π/2，π/2]
sin x = 0 ←→ arcsin x = 0
sin x = 1/2 ←→ arcsin x = π/6
sin x = √2/2 ←→ arcsin x = π/4
sin x = 1 ←→ arcsin x = π/2
