1. I'm talking to you. - I'm not talking to you. 2. You are listening to me. - You are not listening to me. 3. The dog is sleeping in my room. - The dog is not sleeping in my room. 4. We are drinking orange juice. - We are not drinking orange juice. 5. You are leaving for work now. - You are not leaving for work now. 6. They are helping me with my homework. - They are not helping me with my homework. 2.1. Is the sun shining? Yes, it is. 2.2. Are you sitting in this chair? Yes, I am. 2.3. Are we downloading music from the internet? Yes, we are. 2.4. Is your mum watching TV? Yes, she is. 2.5. Are they studying for exams? Yes, they are. 2.6. Am I playing tennis well? Yes I am. 3.1. have - having. 2. read - reading. 3. run - running. 4. live - living. 5. sleep - sleeping. 6. study - studying. 7. swim - swimming. 8. fly - flying.