Sometimes drivers give him a tip, so that he has just enough money to _____.
13. His ability is beyond question; _____ has been in doubt is ____ he is prepared to work hard
12. Half of the students will have sports, and the rest _____ to be here in the classroom studying.
11. She dedicates herself to her work. She is such a dedicated teacher that her efforts will _____.
10. When she heard that I couldn’t help _____ the problem, the poor girl couldn’t help ____.
9. ______, President Obama is the most powerful in the world.