根据短文内容和所给中文提示，在空白处写出正确的单词，每空限填一词。

Hi, everyone! My name is David Brown. David is my (首要的)name and Brown is my last name. I am (来自)New York. It's a big (城市)in America. I am an (美国的) boy. I am thirteen (年龄)old. Now I am in Beijing the (首都)city of China. I am in Class Five (年级)Seven. Zhao Shuai is my friend. He is (中国人). He is twelve years old. His English name is John. (我们的)classroom isn't very (小的). I like it!