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Filtering by: Language summary written in English Remove constraint Language summary written in: English Age of learner Adolescent learners Remove constraint Age of learner: Adolescent learners Author of publication Lightbown, P. Remove constraint Author of publication: Lightbown, P. Author of publication Spada, N. Remove constraint Author of publication: Spada, N. Date of publication 2010 Remove constraint Date of publication: 2010

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