Trả lời: 1. Close your book, please! 2. Sit down please! 3. A: May I go out? B: No, you can’t. 4. A: May I speak English?B: Yes, you can.
Trả lời: 1. Bill: May I come in?2. Lucy: May I open the book? 3. Mary: May I sit down?4. Ben: May I go out?
Trả lời: 1. A: May I go out? B: Yes, you can.2. A: May I stand up?B: No, you can't.