Task 3. Choose the correct item. 1. Passengers must/mustn’t check-in their bags before they fly.
2. You needn’t/ must wear a coat, it’s quite warm.
3. Could/should you lend me some money, please?
4. You don't have to/mustn't go snorkeling in dangerous waters.
5. All my clothes are dirty! I need to/can do some laundry.
