1. ______ your sister have a car?
2. We ______ driving to the lake.
3. I _____ been sick all week.
4. I ______ been working for the my father for many years.
5. The teacher ____ not know know my sister.
6. The computer ______ not working very well last night.
7. The doctor _____ busy today.
8. _____ your family need help?