Here are the rewritten sentences:

1. I couldn’t go camping with my class because I was unable to.
2. It took Peter 3 hours to repair his computer.
3. If you had listened carefully, you would have been more informed about it.
4. Although the prices are high, my daughter insists on going to the movies.
5. This is the most impressive song we’ve ever heard.

**Complete the second sentence to have a similar meaning to the first:**

6. They wrote emails to each other last year.
7. He had his car repaired yesterday.
8. Liz asked Hoa why she wanted to learn English.
9. My sister is neither intelligent nor am I.
10. I have difficulty learning English.