Помогите
Задание 3.Закончите предложения словами, образованными от слов в скобках:
1. We have received this angry letter from a _______(satisfy) customer.
2. The service was not very good, but it was ________( satisfy).
3. To get a refund, you need to present_________(prove)of purchase.
4. The DVD is___________(fault)/ The film keeps stopping and starting/
5. I’ve sent them a letter of _________(complain)