20. For a pre-service teacher, observing some effective sequence of activities in alanguage classroom is helpful. Which of the following statements is Not the mostnecessary one in instruction at the beginning level class?
(A) A focus on the forms of language and analyze language forms.
(B) The teacher asks students questions about their lives and has a small talk.
(C) The teacher corrects students’ errors.
(D) Students are directed to work in pairs and respond appropriately.