As mentioned in part 1, the Comprehensible Output Hypothesis maintains that when learners produce the targetlanguage, external or internal feedback leads them to notice the gaps in their existing IL knowledge. Based onthe analysis of subjects’ interactions, the subjects in experimental group do notice the gaps in their linguisticknowledge while reconstructing the story they’ve just listened to. The total number of LREs generated by 15pairs was 80 with an average of 5 LREs for each pair. The grammatical feature which elicited the most attentionwas the use of verbs (tense, aspect and form) accounting for 46.25% of the language-related episodes, followedby the use of nouns (singular or plural form), the use of articles (definite, indefinite or zero) and so on. Table 1displays the numbers and percentage of grammatical features in language-related episodes.