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Hello，everybody!Now，I"d like to tell you something about my math teacher--- Mr。 Cheng。He has short black hair and a small mouth 。He is handsome。Mr Cheng is kind。He is very friengdly to us。when have questionon our study，we usually ask him。 He always glad to help us every hard-work。He"s my math teacher-Mr。Cheng，well respected by us。