EX. 2 Choose the correct word A: Good morning. How 1) can/must I help you, sir? B: I'd like to book a room for tonight, please. A: Certainly sir. B: How much does a single room cost for one night? A: £35, sir. Payable in advance. B: What! 2) Do I have to/Could I pay right now? A: Yes, I'm afraid you 3) need/must pay in advance, sir. B: Really. Well! 4) Do I have to/Shall I pay in cash? A: No, you 5) mustn't/needn't pay in cash. You 6) could/can't pay by credit card if you prefer. B: This is a bit unusual. I 7) may/must look in my wal- let to see if I have enough cash with me. A: You 8) couldn't/don't have to hurry, sir. Take your time. A: Good morning. Here's the key. 9) Could/Must I leave my luggage here until twelve o'clock, please? B: Of course. 10) May/Need I ask if you enjoyed your stay? A: Oh yes. I 11) can/must write down the phone num- ber, so that I can stay here again. B: You 12) mustn't/don't need to do that, sir. I 13) have to/can give you our card. A: Oh, thank you very much. Goodbye. B: Goodbye.