21. You _______ spend all your time playing computer games when you’ve got exams next week. A. had not better B. ought to C. had better not D. have got to 22. "Would you pick the kids up from school this afternoon?" "No, I’m afraid I _______ " A. wouldn’t B. shan’t C. don’t D. can’t 23. Profits _______ slightly next year, although we don’t predict any job losses. A. are expected to fall B. are expecting to fall C. expect to fall D. are expected falling 24. It’d be great to see you on Sunday evening _______ you’ve already got other plans. A. unless B. otherwise C. as long as D. provided 25. A significant number of students decide _______ for a Master’s degree to enhance their knowledge. A. as to study B. as though study C. to study D. for studying 26. In many _______ of music, some kind of drum is used to provide the rhythm. A. sets B. types C. notes D. records 27. The music was really quite boring and had no real _______ A. flash B. light C. luster D. shine 28. Sometimes a piece of music can _______ very strong memories and emotions. A. evoke B. provoke C. speak D. talk 29. The influence of social media is so great that actors can be _______ to superstar status almost overnight. A. lifted B. improved C. elevated D. raised 30. It would have been a great journey _______ we not got lost along the way. A. might B. should C. would D. had