1. Someone has left the window open.

2. Did anyone call me?

3. Have you read anything on the economy of this country? Next to nothing.

4. I didn't tell any of them about his offer.

5. Wouldyou like something to drink?

6. He knew almost no one in the town.

7. Did any of them invite you this evening?

8. Would you like to go somewhere in the summer?

9. One of us has to go there.

10. The policeman showed me some photos, but I didn't recognize anyone.

11. He didn't report anything about it.

12. If someone calls, I'll be at home at 8 o'clock.

13. We refused to do anything.

14. He did it without any permission.

15. Do you have something in your eye?