11. Thomas Jefferson argued that the greatest contribution you can make to your country is to preserve freedom by continuing your education and taking care that your children receive the highest level of education possible.

12. When Albert got a position in London all of his friends envied him because the job would offer more opportunities to go abroad.

13. If you feel you have any cause for complaint about the service you can call the head office of the company.

14. In the absence of any substantial evidence, the suspect was found not guilty. 15. Therapies like acupuncture do work and many patients have been healed by them.