One day,I'm doing math problems,do not know what a question how to write,I am discouraged.Finally,Annie taught me,with her help,I finally understand,Annie is always ready to help others.I won't forget this thing,it is unforgettabl e.An Unforgettable Thing

It was a nice day in summer vocation.B efore I woke up in the morning,Mom a nd 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 ca me into my mind.During the following t ime,I swept the floor,cleaned the windo w and did the laundry.It was exectly 12 o'clock when I finished all the above ho usework.Ten minutes later,seeing the h appiness in Mom's eyes,I knew that's th e best gift for Mom's birthday!This is th e most unforgettable thing I've ever ha d.这3篇是分开的？后面两个是一篇