4. They don’t go/ doesn’t go to bed at 8:30 p.m. 5. Kevin don’t open/ doesn’t open his workbook. 6. Our hamster don’t eat/ doesn’t eat apples. 7. You don’t chat/ doesn’t chat with your friends. 8. She don’t use/ doesn’t use a ruler. 9. Max, Frank and Steve don’t use/ doesn’t use a skateboard/ doesn’t skate in the yard. 10. The boy don’t throw/ doesn’t throw stones.