1. What are you talking about? 2. We have just talked about it. 3. He has just said something about it. 4. She is telling them some interesting story. 5. He has told us nothing about it, 6. She has told them some stories about dogs. 7. We have had two lessons today. 8. They are having a meeting. 9. She hasn't spoken yet. 10. They have asked me several questions. 11. He has already learnt the rule. 12. I am writing an exercise. 13. What is he doing? He is reading a newspaper. 14. Have you read any stories by Jack London? 15. What are you doing here? I am writing a letter to my friends. 16. Who has written this article? 17. What language are you studying? 18 We have already learnt a lot of English words. 19. Have you found the book? 20. What are you looking for?