I'm a 15-year-old middle school student. I have been busy with my study and seldom helped my parents with the house?work. Feeling quite sorry for that, I begin to think about what .to do to help.Last Sunday,when my parents went out shopping,I sud?denly got an idea: why not give the rooms a thorough cleaning? Firstly I collected all the books,newspapers and other things in the rooms and put them away. Then I wiped the dust off all the furniture. After that,I swept the floors carefully.At this moment,my parents came back and were quite sur?prised to see all the rooms tidy and floors shining. My mother gave me a hug and I could see satisfaction in her eyes. Tired as I was,I never felt so happy