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

there are not 14 students in our group

1 Chris doesn't read a lot2 Minsk isn't a small town3 There aren't 14 students in our group4 Ann hasn't a big red ball5 Jack doesn't get up at six o'clock in the morning6 He isn't a shop assistant7 We don't clean the room every morning8 There isn't a teacher in the classroom