25. The doctor recorded the ______ of the old man’s death as heart failure.

A. effect　　　　　　　　 　 B. result　　　　　　 　　　 C. reason　　　　　 　　 D. cause

24. The reference book is of great value. ________ can be enjoyed from it until you have a deep understanding of it, however.　

　 A. Nothing　　　　 B. Few　　　　　　 C. Something　　 D. Much　

23. Some extra office equipment, including two desks and two computers,

　 __________ to be ordered next week.

A. are　　　　　　　　　　 　 B. is　　　　　　　　　 　　　 C. was　　　　　　　 D. were

22. He’s succeeded in many fields but his wife is an ordinary woman, ___________?

　 A. is she　　　　　 B. isn’t she　　　　 C. doesn’t he　　　 D. hasn’t he　　

21. Whether you believe what he said _________ what he does in the future.

　 A. lives on　　　　 B. depends on　　　 C. calls on　　　　 D. carries on　

20. His parents were teachers in that school, _______ lost their lives in order to save

　 their students in the earthquake.　

　 A. none of them　　 B. both of them　　 C. none of whom　 D. both of whom