Complete the sentences in the Present Perfect Continuous tense.

1. I have been studying English for two years. 2. She has been waiting for you since 10 AM. 3. They have been playing football all afternoon. 4. He has been working on this project for a month. 5. We have not been exercising regularly lately. 6. You have been discussing this issue for hours. 7. She has not been reading that book for weeks. 8. I have been learning to play the guitar. 9. We have been watching that series since it started.