英语写作假设你是Li Ming,你给你的笔友Tom寄去了一张你的全家福,然后在信中向他介绍你的全家.信的开头结尾已给出,

How are you doing? Attached is a photo of my family, we all live in the same house,but of course different rooms. My younger brother and I live right opposite to my parents' room on the 2nd floor. My grandpa and grandma live downstairs so that it saves them a bit of the trouble to walk the stairs every day.
Looking forward to hearing from you soon!