假定你是李华，来自美国的留学生Tom邀请你周末观看英语戏剧表演，你是你要参加学校学生会组织的志愿者活动，因此不能同行。请你给他回信说名情况。
注意：1.词数100左右 2.可以适当添加细节，以使行文连贯。
Dear Tom,
I`m so sorry to refuse your invitation to go to see an English Shoe with you.
In this term,I took part in a volunteer organization of our school.And on this weekend, we will go to a communityto help with the elders,who lives alone and feels lonely.
Although,English Drama Show maybe ie interesting for me, but I am mull over to participate in a volunteer activity and try my best to help other people who are in a terrible state.It will make me more mature than before,makinga difference for our society,I will be proud of myself.
So in the end,I am so sorry that I am unable to see an English Show with you.See you next time!
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