1. I don't type a letter now, I drink coffee, I have a break.
2. The firm faced difficult problems when the top manager came.
3. Ford will produce the Edsel, a large heavy automobile when the public will be interested in smaller, sportier cars.
4. An economy will be organised and will coordinate all these choices.
5. Joe always wanted to own and operate a mexican restaurant.
6. When he returned form business trip, he has called on us.
7. You haven't seen me for ages.
8. We didn't understand the problem yet.