Write it in a different way
1.Look! There is nobody in the classroom.
2.Mark didn't tell us anything interesting about the palace.
3.Bob had nothing to do last night.
5.They didn't see anybody in the cathedral.
6.The Smiths knew nothing about the parade.
7.Mike recognized nobody at the party.
8.Sarah didn't learn anything new yesterday.
Прошу помогите!!! Заранее огромное спасибо!