楼主没有说明一些有用的个人信息,以及作文用处,本人暂且模仿学生口吻作文如下：
An Unforgettable Thing
It was a nice day in summer vocation.Before I woke up in the morning,Mom and Dad had already gone to work.After the breakfast,I opened my notebook.A red circle on the calender attracted my eyes:today's Mom's birthday!Mom even didn't notice me before!
It was late for me to buy a gift for Mom,what should I do?An idea suddenly came into my mind.During the following time,I swept the floor,cleaned the window and did the laundry.It was exectly 12 o'clock when I finished all the above housework.Ten minutes later,seeing the happiness in Mom's eyes,I knew that's the best gift for Mom's birthday!This is the most unforgettable thing I've ever had.