It is because he ___________ science that I __________ what he says.
Careful surveys have showed that audience _______ teachers and students are more likely to take seats _______ directed.
Beginning college is exciting:many of us can be easily excited by _______ details of running _______ well-balanced life.
40. When I was very young, I thought that inside the radio ______ who liked talking very much.
39. ______ has forced people, especially women, to endure a lot of pain and suffering to make themselves more beautiful?
38. Mr. Black ______ home because his briefcase is still on the desk.