6 предложение:Marcus is not playing a computer game at the moment. He is not plays computer games every night.
7 предложение:That song is not very good. I don*t want to listen to it again.

2. My brother doesn't play the guitar, but he is very good at singing.
3. We aren't very happy. Our team isn't winning.
4. Anna and Robert don't like London and they aren't planning to stay there.
5. Lucy isn't very good at dancing. We don't enjoy her shows.
6. Marcus isn't playing a computer game at the moment. He doesn't play computer games every night.
7. That song isn't very good. I don't want to listen to it again.
8. Tony eats hamburgers. He eats a lot of meat.
9. Joanna doesn't have a swimming competition next week, so she isn't practising very hard today.
10. I go to school by bus - I don't walk. So I have time to read magazines on the way.