Which is right?

1. Don't eat so _____. It's not good for you.
1. quick
2. quickly
2. Why are you _____? I haven't done anything.
1. angry
2. angrily
3. Can you speak _____, please?
1. slow
2. slowly
4. Come on, Dave! Why are you always so _____?
1. slow
2. slowly
5. Bill is a very _____ driver.
1. careful
2. carefully
6. Jane is studying _____ for her examinations.
1. hard
2. hardly
7. 'Where's Diane?' She was here but she left _____:
1. sudden
2. suddenly
8. Please be _____. I'm studying.
1. quiet
2. quietly
9. Some companies pay their workers very ____.
1. bad
2. badly
10. Those oranges look _____. Can I have one?
1. nice
2. nicely