1. It is necessary to bring an ...
2. I didn't get permission to stay ...
3. It is unreasonable to expect that everyone ...
4. She has determination to achieve the goal
5. It is impossible for us to know exactly what ...
6. It is very useful to watch this video
Watching this video is very useful
7. My sister has the ability to solve every problem quickly
8. It is dangerous to touch that button
9. It is difficult for the manager to find a suitable candidate ...
10. I don't know the way to use this washing machine
=> It + tobe + adj + for somebody + to do something
=> Subject + tobe + adj + to do something
