1.I'm the best in the class
-> I am not the best in the class.
2.Mark does homework in the evening.
-> Markdoesn't homework in the evening.
3. We play football after school.
.-> We don't play football after school.
4.You run fast.
You don't run fast.
5.Tim and Lucas work at weekends.
-> Tim and Lucas don't work at weekends.
6I like classical music.
.-> I don't like classical music.
7.These exercises aredifficult.
-> These exercises aren't difficult.
8.She has science on Fridays.
-> She hasn't science on Fridays.
