Choose the best answer
20. A. because
21. C. because of
22. D. because of
23. D. have driven - is
24. B. have known - for
25. A. because of
26. C. because
27. C. would die - leaked
28. D. will not be
29. A. will ruin
30. D. has changed
31. A. time -> times
32. B. because -> because of
33. A. studied -> has studied
34. A. made on -> made of
35. C. help-> helped