Trả lời: 1 – c2 – d3 – b4 – a
Trả lời: 1. dA: Good morning, Ms Hoa. B: Hello, class. Sit down , please!2. cA: May I come in? B: Yes, you can. 3. bA: Is this Ben? B: No, it isn’t. It’s Bill. 4. aA: May I speak Vietnamese? B: No, you can’t. Speak English, please!
Trả lời: 1. May I come in?2. May I open the book?3. May I speak English?4. May I go out?