题目内容：

根据句意和所给首字母填写单词。

1.Jane can play the piano, but she can't play it well. She n        to practice more.

2.I really like sports. I want to join a sports c          

3.Bob was very s            two year's ago. Now he is tall, and he's the tallest in his class.

4.Yesterday evening, Mary t            a walk with her mother after dinner.

5.My sister studies h           , and she usually gets good grades in exams.