31. A. happened B. looked C. seemed D. felt
30. A. spelling B. grammar C. English D. pronunciation
29. A. From B. On C. Since D. After
28. A. make B. help C. let D. allow
27. A. knowledge B. time C. money D. English
26. A. found B. watched C. noticed D. known
25. A. questions B. problems C. ideas D. answers
24. A. learning B. enjoying C. trying D. liking
23. A. native B. foreign C. useful D. mother
22. A. difficult B. important C. necessary D. easy