1. Who has (to write) this article? 2. We have already (to learn) a lot of English words. 3. Who has (to teach) you to do it? 4. He has just (to do) something for us. 5. Have you (to find) the book? 6. We have just (to talk) about it. 7. He has just (to say) something about it. 8. He has (to tell) us nothing about it. 9. She has (to tell) them some stories about dogs. 10. We have (to have) two lessons today. ​