阅读下面的短文,根据上下文意思及所给首字母写出所缺单词。 Basketball is a very popular g 1 in America. People and children all 1 2 it. Most people can play it. A basketball is a r 3 and big ball. It's bigger and heavier than a f 4 . It's the biggest of all the balls. There are f 5 players in each team. Basketball is quite popular in China, too. Children often t 6 a basketball to school and play it after school. In China, some girls can play basketball b 7 than boys. 1._____ 2._____ 3._____ 4._____ 5._____ 6._____ 7._____