—May I come in?

—Come in, please. But could you please tell me ____? [ ]

A. why you're late again

B. what were you doing then

C. who you talked

D. how do you come to school

请你根据以下提示，以My experience as a volunteer为题写一篇短文给校办刊物投稿，与读者分享自己寒假做志愿者的经历：

时间： 寒假期间的每个周末；

主要活动：给老人打扫房间；给老人读文章；带领老人锻炼身体；

体会：给老人带来快乐；这次经历使自己更有爱心。

注意：

可根据内容需要适当拓展，以使行文连贯；

词数100左右。

My experience as a volunteer