Complete each sentences with the correct form of a verb from the box.
to get a discount
to keep the receipt
to get a refund
can/ can't afford

1. The jeans I want cost £60 and I've only go £50, so I ...... them.
2. You might ...... - ask if you could have £10 off the price.
3. Please ....... to show when and where you bought them.
4. If they don't fit you, bring them back and you can ........​