This is my English book. It belongs to me. It is mine. That is your English book. It belongs to you. It is yours. Those books aren't ours. They belong to those boys over there. They are theirs. Why do we all have different books? Because we belong to different classes. ...

這是我的英文書。它屬於我的。它是我的。那是你的英文書。它屬於你的。它是你的。那些書不是我們的。它們屬於那邊那些男孩的。那些書是他們的。我們大家的書為什麼不一樣？因為我們屬於不同的班級。