1) ______ the theory of language underlyi

问题：

1) ______ the theory of language underlying the communicative approach
2) ______ the theory of learning underlying the communicative approach
3) ______ one of the objectives of the communicative approach
4) ______ one of the techniques of the communicative approach
5) ______ one of the main features of the communicative approach
a) language best learned through use in social context
b) to develop the students communicative competence
c) role play
d) the introduction of authentic texts into the learning situation
e) functional linguistics