Ladys and gentlemen,
Good morning! My name is Zhang Guanyu。 I am eleven years old。I am a happy boy。 I have black hair and two big eyes。
I have a happy family。I have a brother and a sister。 They both like me very much。We often play games in the house。I have a cat。
Its name is Xiao Me。It is a white cat。I like playing computer and swimming。My favorite color is red。
刚好80字，你可以根据你的情况改一下。
祝你成功！。