Peter is a careful/carefully driver.He driver very careful/carefully. Turtles walk slow/slowly because they are slow/slowly animals. A cautious/cautiously person usually speaks cautious/cautiously.They are quite/quietly,they are speking quite/quietly.Gordon plays very good/well. He is good/well player. He did a brilliant/brilliantly exam. He passed the exam brilliant/brilliantly. He looked at me angry/angrily. He has a very angry/angrily look. We slept comfortable/comfortably in our comfortable/comfortably bed. He plays bad/badly because he is a bad/badly player