21. I was unaware of the critical points involved, so my choice was quite_______. A. arbitrary B. rational C. serene D. unpredictable <arbitrary>...
22. The famous scientist _____ his success to hard work. A. imparted B. ascribed C. sauntered D. acknowledged <ascribe>ascribe (to) 归因于，归咎于ascri...
23. Everybody _____ in the hall where they welcomed by the secretary. A. assembled B. piled C. joined D. accumulatedassemble (人群)聚集assembly line 装配线 s...
24. The patient has been _____ of the safety of the operation. A. assured B. guaranteed C. entrusted D. confirmedpatience 耐心，耐性patient 病人operation 手术，...
25. In a typhoon, winds _____ a speed greater than 120 kilometer an hour. A. assume B. accomplish C. attain D. assemble typhoon 台风tycoon 大亨，太君hurrican...
26. We ______ Edison’s success to his intelligence and hard work. A. subject B. attribute C. owe D. refer attribute to=ascribe to 归因于，归咎于contrib...
27. What the correspondent sent us is an ______ news report. We can depend on it. A. evident B. authentic C. ultimate D. immediate authentic 真实的，可靠的a...
28. In fact, there is no _______ liberty in any country. A. adequate B. absolute C. private D. practicaladequate 足够的absolute 绝对的private 私人的privilege 特...
29. The manager director took the ______ for the accident, although it was not really his fault. A. guilt B. blame C. charge D. accusation blame (for)...
30. They spent many years _______ for oil in this small island. A. exploring B. exploding C. exposing D. exploitingexplore 探索，研究lore 知识文化，学问folklore 民...