2 I am not learning Russian. (-)3. Is it snowing?. (?)4. They are walking in the park. (+)5. Sophie isn`t eating berries. (-)6. Is mother vacuum-cleaning? (?)7. Jenny is writing a postcard. (+)8. We aren`t swimming in the swimming-pool. (-)9. I am listening to music. (+)10. Is Kevin working? (?)11. The nurse is feeding the patient. (+)12. Is the wind blowing? (?)13. She isn`t singing a lullaby. (-)14. Are the boys riding horses? (?)15. They aren`t building a new house. (-)