指出并纠正下面信函中介词用法的十个错误：Dear Sir：　

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　　指出并纠正下面信函中介词用法的十个错误：Dear Sir：　　As an accounting major planning to graduate this spring，I need to make a career decision：whether to enter an accounting firm or become an industrial accountant.　　Because I am also enrolled into a business communications class and have been assigned a report，I am investigating the two accounting areas.Specifically，the purpose of my report is to compare ajob-entry position in an accounting firm with a similar position in industry to determine which is more feasible for a person with my background.The decision will be derived upon the duties，salary，working conditions， and opportunities for advancement.To determine how one position differs with the other.I have read books and periodicals，beside talking to three accountants in each area.　　Between the people I have interviewed，I have discovered some conflicting ideas，I have been told that if I put forth the effort and perform like a good accountant should，I may or may not have the opportunity to become an auditor.I enrolled in accounting because my longterm goal iS tO become an auditor.　　This letter is accompanied by a questionnaire and a self—addressed envelope.The number in the upper left—hand corner of the questionnaire corresponds with the name of your organization;however，I would appreciate your signing the questionnaire as well.If you are interested in receiving a synopsis of my report，please complete all of the blanks below the dotted line.If I receive your response before July 1，I shall have your synopsis to you before July 5.