Which of the following is NOT true about language formality?
(A)It would be appropriate for the teacher to say “Good morning, everyone” or something similar to greet a class.
(B)It is proper for a student to say “I’m so tired” to his teacher when the student requests to stop doing his homework.
(C)Your close friends may invite you for lunch by saying “Coming for lunch?”
(D)A teacher might be too formal when greeting a class by saying “I’d like to wish you all a very good morning,” or too informal by saying “Hi, guys.”