Помогите с 3 заданием срочно по британскому!!! Даю 20 баллов

1 Chris doesn't read a lot
2 Minsk isn't a small town
3 There aren't 14 students in our group
4 Ann hasn't a big red ball
5 Jack doesn't get up at six o'clock in the morning
6 He isn't a shop assistant
7 We don't clean the room every morning
8 There isn't a teacher in the classroom

there are not 14 students in our group