2Fathman, A. & Whalley E. Teacher Responses to Student Writing: Focus on Forrn versus Content [ A] . In B. Kro 11 ( ed. ) . Second Language Writing: Reseat ch Ins ight f or the Classroom[ C] . New York Cambridge University Press, 1990.
3Keh, C. Feedback in the Writing Process: A Model and Methods for Implementation[ J]. ELT Journal, 1990, (44).
4Zamel, V. Responding to Student Writing [ J]. TESOL Quarterly, 1985, (19).