Key (since clauses)

Since he got home he’s been on the phone.
2. Since they've been living here the house has been much tidier.
3. We've been really good friends ever since we met.
4. Since he's been working for them he's had a lot less free time.
5. I've been having regular headaches since I've been using these pills.
6. I've been sleeping a lot better since my husband moved to a different bedroom.
7. I've been a lot fitter since I quit smoking.
8. The town's been much quiter since they opened the new bypass.
9. Have you heard from them since they moved to Brno?
10. He's put on so much weight since he's been married.
11. Since I had that terrible flu I've been feeling really tired.
12. Since I haven't been smoking I've been able to breathe a lot more easily.
13. My tummy's been really stragne since I had that sausage.
14. I've been eating these sausages ever since I was a child.
15. You've hardly spoken to me since you've had that wretched phone.