15: A. prepare B. divide C. attract D. differ

14: A. polite B. system C. progress D. children

13: A. provide B. machine C. lesson D. important

13: A. provide B. machine C. lesson D. important

12: A. manage B. shortage C. village D. encourage

11: A. precede B. offer C. follow D. listen

10: A. employ B. apologize C. sacrifice D. maintain

9 : A. promise B. social C. oblige D. project

Question 8: A. communicate B. impossible C. intervention D. activity

Question 7: A. enter B. comment C. chemist D. proceed