B. Rewrite each sentence using appropriate modal. Example: As responsible citizens, it is our strong obligation to pay taxes. As responsible citizens, we must pay our taxes. 11. The board has not approved the proposal. It is possible that the President will not do anything without it. 12. You had been working hard. The office gives you the permission to take a week-long vacation, 13. Myca is a very talented student. She has the ability to write stories and play different types of musical instruments, 14. You did not study well. You have 50% chance to pass the test. 15. Marc promised to bring honor to his country. He has the strong desire to fulfill his promise.​