How nice to hear from you

Let me tell you something about the

I’m glad to have received your letter of

I’m pleased to hear that you’re coming to China for a

I’m writing to thank you for your help during my stay in

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With best

I’m looking forward to your

I’d appreciate it if you could reply

正文部分：

All the teachers and students are required to attend

Please take your notebooks and make

Please listen carefully and we’ll have a discussion in

Please come on time and don’t be