英语短文改错,好心人帮下忙,高分悬赏!

英语短文改错,好心人帮下忙,高分悬赏!
My classmate,Li Lei,hasawarded the title of"Star Student ofthe Week"for which he did for our class.In the hot afternoon of last Saturday,he went downtown and walk from onestore to another.He wanted to look for the costumes when we would wear in the singing contest.While the rest of us was enjoying our leisure time in cool and comfortable rooms,he spent the whole afternoon searching and rejecting.Finally,he found the right clothes.Deeply moving by his efforts,we tried our best and won the first prize.He is always warm-hearted or cares a lot about theclass.Besides,he often devotes his spare time to help others.He deserves the honor and we should learn him.