改错 1.He said that he couldn't help but t
题型：改错题
问题：
改错
1.He said that he couldn't help but to cheat his girlfriend.
2.These old people are concerning about the growth of the younger generation.
3.To have been caught a sandstorm was a terrible experience.
4.What the teachers said will have an effect in their students.
5.Most of what has been said about the Smiths are also true of the Johnsons.
=（）。