11. If we don't hurry, we will be late for the exam. 12. They are being made to study hard by their teacher. 13. This chequehasn't been signed. 14. She advised me not to buy that coat. 15. I was sent to school by my parents when I was six years old. 16. The wanted man is believed to be living in New York. 17. I wish our teacher were here at the moment. 18. Unlessyou study harder, you will fail the exam.
19. Might water be found on Mars?
20. If she weren't ill, she could go to school today.
