更正在括号中注明,保证准确率!
有一处估计是楼主打字错误.
I still remember my middle school life in that small town．I (am改成was) then in a school for students from Tibet．As we all left home at (a改成an) early age, we met lots of problems in our daily life．We had to do the washing, cleaning and shopping by (us改成ourselves)．However, we seldom felt lonely or (helplessly改成helpless)．We enjoyed our happy life．At weekends, we would play basketball, (swam改成swim) in the pool (or改成and) go for a picnic．We (去掉are) lived in a big family．We treated each other (加入as) brothers and sisters．If any one of us had any difficulty with his studies, the other (student改成students) would help him out．It has been five years (when改成since) we graduated, but those memories are as sweet as (never改成ever) before．
