户外外教

㈠ 假设你叫李华，本周日上午你班的外教要组织你们进行一次户外郊游活动，但你昨天下午打篮球时扭伤了脚，...

Dear Mr. Smith,
This is Li Hua, I sprained my ankle when playing basketball unfortunately yesterday afternoon, and I have to stay and rest according to docotor's suggestion, so I am so sorry that I can not attend this Sunday's outing, and It's great appreciated for your permission on my Sunday's leave, Hope all of you have a good time. Thanks in advance.

Best Regards

Li hua