Answer:
2. His appetite is good enough.
3. You have had enough junk food.
4. There isn`t enough time for us to try everything on the menu.
5. Brian didn`t move quickly enough and fell down.
6. Do you think I`ve made enough sandwiches?
7. The task was easy enough. It took me just a quarter of an hour to do it.
8. Three days later Bridget felt well enough. She understood she could leave hospital.