Ответ: 1. “Are they still having dinner?”   “No, they have finished”.
2. I have bought some new shoes. Do you want to see then?
3. “Is Tom here?”   “No, he has gone to work”.
4. “Have you done the shopping? 
“No, I’m going to do it later”.                   
5. “Where’s you key?”   “I don’t know.  I have lost it”.
6. Look! Somebody has broken that window..
7. Your house looks different. Have you painted it?
8. I can’t find my umbrella. Somebody has taken it.
9. I’m looking for Ann. Where has she gone?
10. “Do you want the newspaper?”  “No, thanks.
I have read it”.