=>
Ex7/
1. To rain
2. to attend
3. know
4. go
5. to go
Ex8/
1. She is excited to get first prize in the competition.
2. She is determined to find the best solution for this serious problem.
3. It is unsafe to go on a boat if you can't swim.
4. My mother prefers listening to music to dancing.
5. We found it difficult to search important information on the Internet 20 years ago.
6. They made us stand outside the class for an hour.