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Dear Tom
I am very sorry that I can not go to Beijing with you,please calm down.let me explain my difficulty
Yesterday my uncle phoned me.I heard something bad,my cousin was hurt by accident.As you know,I am good with him.When I heard the news,I was so sad that I nearly pass out.Now I have to go to the hospital and look after him.
I believe you will appriciate my difficulty.If you want to go to Beijing next time ,Please call me,I promise that I will go with you.Have a good time.
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