I.
1. Charles isn't building a house.
2. He doesn't drive a car.
3. We haven't got a dog.
4. I am. not really tired.
5. They aren't sitting on a tree.
II.
1. Does Sarah usually ride a bike?
2. Is Pam. having lunch?
3. Is it an interesting book?
4. Do they visit granny on Saturdays?
5. Are the Lees travelling to London?