题目：In an English class, the teacher, firstly, plays the radio and asks students to listen to the tape and understand the dialogue. Then, the teacher asks students to read after the tape to imitate the pronunciation. Next, the teacher asks students to repeat the dialogue in pairs … What teaching method does the teacher use in this class?
A、The Communicative Approach.
B、 Task-based Language Teaching.
C、 The Audio-lingual Method.
D、 The Audio-visual Method.
