Choose the option (A, B, C or D) that best completes each of the following sentences.
1. Do you have these trousers in __________?
2. Simon wants to buy __________ jeans.
3. There is a long queue of __________ waiting to pay for their goods.
4. The generous customer left a big __________ for the waiter.
5. Waiter: Can I get you anything for dessert? - Customers: __________, please.
