1. I ask him to come to the exhibition but he's _____________seen it. 2. Is that a good book? – I don’t know. I have _____________ started reading it. 3. Have you paid the bill _____________? 4. I've solved the problem ____________ last week. 5. The painter hasn’t finished his work ____________. 6. I haven’t heard from him ___________ 3 months. 7. It’s 1:00 p.m. I’m not hungry. I’ve __________ eaten lunch. 8. Have you _________ had dinner with my family? 9. We have ____________ been to this place before. This is the first time. 10. Tommy has worked for this company __________ 10 months