Jenny … (to wait) for her flight in the airport since twelve o’clock? — No, she …. She … (to wait) for her flight for forty minutes now.
2. Can I talk with you? — Sorry, I’m busy. I … (to look) for one important paper for more than twenty minutes now and can’t find it.
3. Is Ed at home? — No, he is in the gym. He … (to train) since five o’clock.
4. … your mother …(to work) as a manager for ten years? — No, she …. She … (to work) as a manager for eighteen years.
5. Is Philip fixing the washing-machine? — Yes, he … (to fix) it since nine o’clock.
6. Alison and Cindy … (not to paint) the walls in the room for two hours. They … (to work) since morning.
7. The Petersons … (to build) their house for three years now.
8. Is mother in the kitchen? — Yes, she … (to cook) since four o’clock.
9. You look tired! — Well, I … (to gather) strawberries for more than two hours.
10. Where is Ben? — He is in his room. He … (to listen) to music since afternoon.
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