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• 28. Koala bears are ____________ marsupials.(A) leaves-eating (B) eating leaves (C) leaf-eating
• 29. Some __________ animals like giraffes, okapis, and cattle can extend theirtongues all the way to
• 30. _________ unwilling to do so, he had to follow the traditional ways of doingthings.(A) Because (
• 31. Taxonomy is a scientific method which deals with __________.(A) all living things are classified
• 32. The adult kangaroo may stand _______ tall as six feet in height.(A) as (B) that (C) so
• 33. Some species of baby fish are _______ tiny and transparent that they arealmost invisible.(A) too
• 34. Mangroves are tropical plants that live in the intertidal zone where sea waterand fresh water ar
• 35. Most psychologists deeply believe that it is just as difficult to change aperson’s way of thinki
• 36. Organ transplants are the most difficult jobs _________ the surgicaloperations.(A) except (B) fr
• 37. The size of birds _________ on their ability to fly, for weight increases itsburden when it take
• 38. Medical research indicates that alcohol and caffeine can make the stomachmore sensitive to the _
• 39. Some marine fish can excrete salt by means of _________of special cells inthe gills and intestin
• 40. Aspirin is used to __________ the effect of pains, such as headache,toothache, and sore throat.(
• 41. I want to go to the dentist, but you _______ with me.(A) do not need go (B) need not to go (C) n
• 42. The infant ___________ quietly sucking its thumb.(A) lied (B) lay (C) laid
• 43. The process _______ plants to transform solar energy into food is calledphotosynthesis.(A) it en
• 44. Some plants have obvious distinctive features for us to tell them apart at thefirst sight, while
• 45. Scientists believe that _______ twins can be identical in every aspect.(A) not (B) none (C) no
• 46. With the outbreak of SARS, how to control this highly contagious disease hasbecome a major _____
• 47. ______ 150 people were killed in an aircrash that took place in Nigeria,including all crew membe
• 48. Frankly speaking, _________your timely help, I couldn’t have dealt with thatproblem all by mysel
• 49. Environmentalists ________ to the construction of another nuclear powerplant in Taiwan.(A) oppos
• 50. A good speaker must be ________, or else his speech is likely to be boring.(A) eloquent (B) esse
• 51. Instead of withdrawing into a corner, you should ________ your courage andmeet all the challenge
• 52. No matter how hard I tried, I just couldn’t _______ John into quittingsmoking.(A) persuade (B) t