Поставьте глаголы, данные в скобках, в Present Perfect Progressive.
1. My Granny (to work) in the garden since he retired.
2. I (to use) this cream since I discovered it.
3. She (to sell) fruit and vegetables for five years.
4. The factory (to produce) these trainers for two years.
5. My mum (to eat) low-calorie foods for six month.