选择题：the change from sentence to discourse is the change from learning language _________ to __________.

because no textbooks are written for any particular class, it is _____ for teachers to adapt materials.

one common problem in english learning is that many students take great pain to improve the english sounds they produce while neglecting ______________.

the teacher give students 2 minutes to skim a text, and when time is up, he asks students to stop and answer some questions. in this way, the teacher's role is a／an _____________.

__________ means planning a number of different types of activities and where possibl

____________refers to those words that we use to label things as regards real objects, such as a name or a sign, etc, in the physical world.