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题库 / Prep2007E1-SC-95
Unlike frogs that metamorphose from tadpoles into adults within a one-year period, it takes three to four years for the mountain yellow-legged frog of the Sierra Nevada to reach adulthood, and so they are restricted to deeper bodies of water that do not dry up in summer or freeze solid in winter.
it takes three to four years for the mountain yellow-legged frog of the Sierra Nevada to reach adulthood, and so they are
it takes the mountain yellow-legged frog of the Sierra Nevada three to four years until it reaches adulthood, and therefore it is
in the Sierra Nevada, mountain yellow-legged tree frogs take three to four years to reach adulthood, thus being
mountain yellow-legged frogs of the Sierra Nevada take three to four years until they reach adulthood, thus
mountain yellow-legged frogs of the Sierra Nevada take three to four years to reach adulthood, and so they are
1、until表示动作的持续，如wait until the rain stops.；You're not going out until you've finished this. ；Until now I have always lived alone.
It take sb a period of time动作时take，不是take time这个动作持续到青蛙成年，是to reach adulthood take time
2、unlike/like的比较比较的内容相同或不同的部分，D，restricted to deeper bodies of water做状语，修饰黄脚蛙长大成年这个动作，属于比较的一部分，但前面被比较的内容并不包含被比较的蛙是不是被限制在更浅的水里了，比较内容不适当；E，and so是并列连词连接独立的句子，她与unlike是并列的，不会被包含进unlike的内容里面，E对
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