พิจารณาข้อความต่อไปนี้ 1) The Common European Framework of Reference (CEFR) has 5 main le…

พิจารณาข้อความต่อไปนี้ 1) The Common European Framework of Reference (CEFR) has 5 main levels 2) The theory that people acquire language naturally through comprehensible input, and that anxiety can block it (the affective filter), was proposed by Stephen Krashen