五．单句改错：
1.He said he wouldn’t go back to be rich for anything.________
2.Tom had to drop out school because of his poor family._____
3.I spend all of my money very fast and save nothing of it._____
4.Over time, a lot of soil has removed, causing serious erosion.______
5.People were asked to comment scenes from this film.______
6.It is you who has the most important role to play in stopping the erosion.______
7.It is amazing that all this started from 5 Yuan.______
8.A person like him is difficult to get along.______
9.I found some of what he said very worried.______
10.The thief was lucky enough to escape from being caught._____