Directions: For each blank in the following passage, there are four choices marked A, B, C and D. Choose the one that is most suitable and mark your answer by blackening the corresponding letter on the Answer Sheet.
     Teachers are some of the most important professionals in the world. They are responsiblepreparing future generations to become productive and honest citizens, who willto society for the whole of their adult life.
     Obviously, the most common reasonteachers decide to teach is the ability to make a difference. There are many professions that give people the ability to have a(n)impact on the world and change people's lives, few professions have a direct impact ona better society as teachers do. People tend totheir teachers for years after they finish school, for good teachers cantheir students to become something that theythought they could be, or to worka field that they thought they did not.
     Teachers are also important because they providefor their students. In certain low-income areassome students may not have both of their parents, teachers can provide an important influence that helps their students make the right, even when they are not in the classroom. Generally, teachers' impact on students can last all through their life.