英语阅读,
Dear Jack,
We're going to have our school sports meeting on the playground next week.It will last three days from Thursday to Saturday.We have many competitions in running,such as 100-meter race,400-meter race and the ralay race.We also have the long jump,the high jump,and so on.I know you're good at running .Would you please take part in the boy's 400-meter relay race which starts at 10:30 a.m.on Friday?Please be on time,wear your sports shoes and take a bottle of water.
Good luck to you!
Yours,
Jim
1、What does Jim ask Jack to do and why?