Помогите!!!Пожалуйста!!!1.Mark three words wich take the prefix

Помогите!!!Пожалуйста!!!
1.Mark three words wich take the prefix UN-
1)Happy
2)Polite
3)Usual
4)Friendly
5)Regular
6)Legal
2.Choose three sentences with Present Tenses
1)She was at school this morning
2)Maybe I will have a nap
3)She is worked here since 2004
4)I spent a lot of time on this project
5)His parents are having lunch at the moment
6)Does he run marathons