Before he became a writer,my neighbor told me what(——)he would like to do a professor when he was at school.(——)He had worked very hard at his lesson and tried to(——)enter into a famous university to get his dream realized.(——)However,something unexpected happened to his family,(——)which made necessary for him to drop out of school(——)in order to make a living.As a young man,he has done(——)varieties if jobs.Tiring as he was,he always devoted his(——)spare time to write and finally became a well-known writer.(——)"Keep trying,"he often said,"you will succeed sooner and later."(——)需要改错的每句话后面有括号，