ai giúp với ạaaaa, tớ cảm ơnnnn

11. A: Why are you sitting in the dark? B: Lets just say that if I in the dark now. 12. A: Would you like B: No, thanks. If I 13. You'd have a lot of friends if you 14. If she a cup (pay) my electricity bill last month, I of coffee? 15. They would be upset if I (drink) coffee late at n ...