Each sentence has a mistake. Find it and correct it

III. Each sentence has a mistake. Find it and correst it.

1. Lan plays the violin in the school’s orchestra. ____________ 2. The magazines on this rack is in English. ____________ 3. After the first two lessons we have a twenty- minutes break. ____________ 4. After our vacation in Ha Long Bay we returned to home by bus. ____________ 5. We are happy hearing that you’ve passed the final exams. ____________ 6. How many times in a day do you brush your teeth? ____________ 7. The dirt on vegetables can cause you sick. ____________ 8. She bought some souvernirs from the shop and so was I. ____________ 9. Scientists say that the life started in the ocean. ____________ 10. Indonesia is one of the strongest country in badminton. ____________