Review 9

2. ^ to give someone a task or role ^ The teacher ###ed a seat to each student.
3. ^ uneven or not smooth ^ The merchants completed the trip over the ### mountain road.
5. ^ by many people or over a large area ^ Franz Schubert's compositions did not become ### known until many years after his death.
8. ^ something that encourages action ^ The research shows that the greatest ### to productivity in the workplace is managerial style.
9. ^ very quickly ^ Theodore's health declined ###, and in 1933, he died of cancer.
11. ^ to let something out ^ The burning of fossil fuels ###s poisonous gases into the air.
13. ^ to move in a winding path ^ The highway ###s through the mountains and has many incredible views along the way.
14. ^ to come out or appear ^ Every 17 years, cicadas ### by the millions in North America.
16. ^ to suppose something is true ^ Biologists ### that a massive asteroid was responsible for the extinction of the dinosaurs.
18. ^ an important discovery or advance ^ The discovery of a cure for AIDS would be a huge ### for modern medicine.
19. ^ advanced and complex ^ A more ### approach was needed to solve the problem.

1. ^ usual or traditional ^ It is ### to burn an American flag when it becomes torn.
4. ^ to admit or recognize something ^ The professor ###d the unrealistic deadline for the assignment and changed it.
6. ^ to begin something ^ The government has ###d several new welfare policies to assist the poor.
7. ^ to get or come from something ^ The name of Colorado's Pueblo County is ###d from the Spanish word for “village.”
10. ^ a state of disorder without control ^ During the protests, ### filled the city's streets.
12. ^ very great in size or amount ^ The Arab-Israeli conflict has had a ### impact on the world economy.
15. ^ basically or mainly ^ Although Kelly is ### content with her single life, she does occasionally consider starting a family.
17. with ^ to deal successfully with something difficult ^ The soccer players ### heavy rain and a muddy field as they played the game.
20. ^ to supervise or manage ^ It is the job of the manager to ### factory workers.