Find the mistakes

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1. She offered me many interesting books.
2. We are interested in work together to teach.
3. His family was poor, because he couldn’t go to school.
4. Camp is one of my favorite outdoor activities.
5. I started to like go camping when I was a young boy.
6. A notebook isn't more expensive as a textbook.
7. Although my next door neighbor is not very cleverly, he is hard-working.
8. You should hurry up, and you'll be late for work.
9. How didn't the teacher come to class yesterday? - Because she was ill.
10. We have did this test for thirty minutes.