4、
As more states require high school students to pass competence exams before graduating, evidence suggests that cheating among students is _ 1 _ the rise. Many educators are concerned _ 2 _ dishonest behavior among examinees, and have _ 3 _ a number of campaign to control cheating. In spite of their efforts, however, cheating seems to be increasingly _ 4 _ among students in both high schools and universities. Numerous arguments have been made about the cause of this widespread problem. Some experts believe it is _ 5 _ to changes in American society as a whole since, _ 6 _ earlier times, modern
1. A. in B. at C. on D. to
2. A. about B. for C. to D. in
3. A. carried B. began C. formed D. launched
4. A. contagious B. appeared C. showed D. found
5. A. focused B. bound C. linked D. contrary
6. A. Like B. Unlike C. As D. At
7. A. But B. Nevertheless C. Because D. Additionally
8. A. to B. in C. for D. at
9. A. more B. much C. less D. most
10. A. encourage B. discourage C. approve D. disapprove