Помогите пожалуйста задание номер 6

1) Rob, you've got unclean hands. Go and wash them.
2) Tim eats chips for breakfast, lunch and supper. I think he eats unhealthy food.
3) James Richardson is an unsuccessful writer. People don't like his books.
4) My favourite pet died. I'm very unhappy.
5) Some dogs can be unfriendly.