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13英语432：As far as I am concerned,the more appropriate way is that we discuss with peers first.We can identify grammmarical erros,spelling erros ,ect. Afer peer revision,we can ask teacher for help,becuase our teacher are more experienced ,they can give us more professional advice.In this way,we can improve our writting skills much faster.

421-i prefer teacher revision for teachers could provide some pertinent thoughts that us students lacking in.

406------in my oppinion, i prefer peer revision. because it allows us to take active roles in our own study and makes us more confident.