Question 22. They now regret their children by providing too many material possessions. A. having spoiled B. to have spoiled C. having been spoiled D. to have been spoiled Question 23. from the bike, Mary was taken to hospital and had an operation. A. When falling B. As he was fallen C. After having fallen D. To fall Question 24. She will sit for an exam next month. If she doesn't now, she will surely fail. A. hit the books B. learn her lesson C. learn the ropes D. hit the table Question 25. My son regretted _hard enough for his previous exam. A. not having studied B. not to have studied C. studying D. having studied Question 26. "This seems to be a serious problem." - "Oh, yes. It's a A. hotly debated B. hotly debate C. hotly debating D. hot debated