I just wonder ____ that makes him so excited.
34. On yesterday's interview, he didn't make a(an) _______ at all; what was the matter with him?
33. The employees have not been paid _______ since the new manager took over this company last month.
32. _________ girl in red has formed the habit of walking her dog at dusk every day.
31. – How did your father catch so many fish? – By using a ________.
30. – Why does the boss look worded? – Tom left the company a month ago and his work unfinished ever since.