преобразуйте все исчисляемые существительные в единственном числе во множественное
1. The foot is sore
2. There is man behind you
3. This isn’t a mouse.
4. This hero is unknown.
5. The mystery of the case was revealed
6. The friend of mine is coming to stay at the weekend. 7. What is the chance of success?
7. What is the chance of success?
8. There was a small loss
9. Crime is a problem in most big cities
10. What is the criterion for this estimation?

1. The feet are sore 2. There are men behind you 3. These aren’t mice. 4. These heroes are unknown. 5. The mysteries of the case were revealed6. The friends of mine are coming to stay at the weekend. 7. What are the chances of success?7. What are the chances of success?8. There were small losses9. Crimes are a problem in most big cities10. What are the criterions for these estimations?