Ex.2. Change the following sentences from affirmative to negative. 1. They are in Kyiv now. 7. The sky is very cloudy today. 2. John is in the plane now. 8. The weather is fine. 3. She is at Gate 4 now. 9. He is at the airport now. 4. He is a good pilot. 6. They are members of our club. 5. Both sisters are air hostesses.