Dear Sir:\r\n　　My name is LiHua, I am writing to tell you something about our library.\r\n　　Last Saturday, I was going to our library with my friends. We are very disapponited with the \r\n　　librarian.His attitude is too bad,so my friend was very angry.When my friend ask him why ignore us , he is very aggressive for us and say you don’t see me I am very busy. Besides, the environment is too dirty.So I do hope you can improve it.\r\n　　Thank you for your time and kind consideration.\r\n　　Sincerely yours\r\n　　LiHua