.His conclusion, ______ on careful research, was acceptable.

fishsteven2022-10-04 11:39:541条回答


.His conclusion, ______ on careful research, was acceptable.
A.to base B.to be based C.basing D.based

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D

考查非谓语动词。句中be based on以……为基础,在句中作定语,修饰His conclusion,相当于定语从句which is based on…,故选D。
1年前

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