Answer:
1. Sam was sure many of his answers *Were* wrong.
2. Neither of the boys *were* ready on Time.
3. Most of the listeners *Understand* the speakers' purpose.
4. I looked down the street, but no one *was* there.
5. Everyone in the cub *Wants* to have a party next Week.
6. Someone in the audience *has* a Question.
7. Are u sure that everything *is* packed for the Trip?
8. Half of the children *arrive* Late.
9. Each of the players *seem* bigger than the next!
10. *Are* all the stores open?
11. Nobody *wishes* to argue with a Rattlesnake.
12. All of the cake *is* Gone
13. Many of my friends *Attend* night classes.
14. I don't think anyone *has*been happier than Mercy.
15. Only one of the dogs *Bite* without provocation. )
