The ancestors of all living species were the best-adapted individuals of their day, just as future being, if natural selection i

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问题 The ancestors of all living species were the best-adapted individuals of their day, just as future being, if natural selection is allowed to run its course, ______the best-adapted individuals of today.

选项 A、will evolve to
B、has evolved to
C、will evolve from
D、has evolved from

答案C

解析 本题考查语法结构。分析句子结构可知,as引导的非限制性定语从句修饰整个主句,意为“正如……”。定语从句的主语是future being,结合if引导的条件状语从句可知,定语从句中应使用将来时。动词evolve后常接介词from,故答案为[C]项。
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