阅读下面材料，在空白处填入适当的内容（1个单词）或括号内单词的正确形式。

    John and David are brothers. But they don't like the sports. John likes soccer. For the soccer ball stars(明星), he(love) Messi. He plays soccer class. He has 9 soccer balls his bookcase. He likes volleyball, too. He has 2 yellow. But David(not) like soccer or volleyball. He likes tennis. He thinks tennis is (interest). For the tennis stars, he only likes Li Na. He has 7 yellow tennis(ball) and 2 tennis rackets(球拍)in his room. He always plays ping-pong with (he) classmates. For the ping-pong stars, he likes Wang Hao. He 7 ping-pong balls and 5 ping-pong bats.