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I couldn't attend the physicas class yesterday as I had to take an early leave because of my having an urgent piece of businesses. So I would be grateful to you if you kindly let me know the lesson of the previous class. I am very pleased to thank you for your nice e-mail and inviting me to your birthday party. I have to that your b
great job brother i also used to left classes during my college time. it was normal when we feel boring we left the class