Teacherswhobelieveinthe__________modelwillenablestudentstounderstandthemeaningandusageofthewordsfirst,andthenmakefulluseofthewordsinlistening,readingorwritingtasks,askrepresentativestoshowproductsofthetasks,andgiveanevaluationforitatlastwhenteachingvocabulary.
A.PPP
B.PWP
C.PPT
D.TBLT
正确答案是D