假如你叫李平。你的笔友 David想了解目前体育中考的自选项目：排球垫球和100米游泳。请给根据下表提示和你自己的体会，向David介绍这两种项目的特点，然后告诉他你的选择和理由，井为此做了怎样的努力。
volleyball | any training field | interesting to practise | …… |
swimming | Any stroke(泳姿) | Easy to get full marks | …… |
注意：①短文必须包括表中所有内容，并适当增加；②词数：80-100；③短文首句仅供参考，不计入总词数。
Dear David,
In your letter you want to know our physical education course. This year we have two new items to choose: volleyball and swimming.
How about your sports at school? Please write soon.
Yours,
Li Ping
