判断题
For Krashen, the affective filter is the principal source of individual difference in second language acquisition.（）
正确
判断题 Krashen believes that adults are better language learners, while children are better language acquirers.（）
判断题 The goal of foreign language teaching is to produce over-users of monitor.（）
判断题 Conscious knowledge of rules does not help acquisition according to Krashen.（）
