题目内容：

V.用所给词的适当形式填空

1.She spends two hours________(play)baseball after school every day．

2.A good habit can help you________(work)better．

3.We should encourage the children__________(do)good things for the people．

4.Collecting stamps is one of my__________(hobby)．

5.I take part in all kinds of________(activity)．