In the first century B. C. Dianysius Thrax wrote a book of Greek ______.

填空题Krashen s affective filter hypothesis attempts to explain the variation in ______ of language acquisition among individuals of the same group.

填空题John Firth, a linguist, stressed that language needs to be studied in the broader context of its ______ use.

填空题ASSRF is the short form for affective, situation, structure, rule and ______ .

填空题Writing can be introduced as a means of ______ and evaluation in the Direct Method.

填空题What Krashen and Terrell emphasize in their approach is the ______ of meaning.