1. I am WRITING an exercise.
2. We have just TSLKED about it.
3. What are you TALKING about?
4. What is she TEACHING them?
5. They have ASKED me several questions.
6. She is TELLING them some interesting story.
7. Who has TAUGHT you to do it?
8.They are HAVING a meeting.
9. What language are you STUDYING?
10. She has not SPOKEN yet.