Fossil records indicate________existing in the past have become extinct.

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问题 Fossil records indicate________existing in the past have become extinct.

选项 A、that many species of organisms
B、many species of organisms that
C、many species of organisms are
D、there are many organisms

答案A

解析 化石上的记录表明过去存在的许多生物物种现在已经灭绝了。句子结构题。本句的主干为Fossil records indicate…。indicate后常接that引导的宾语从句。题干中宾语从句的谓语是have become extinct,而且existing in the past是从句主语的后置定语,此从句缺少引导词和主语,故应选A。
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