The cause he had devoted himself to __________a perfect success.A.provingB.provedC.was provedD.has b

题目简介

The cause he had devoted himself to __________a perfect success.A.provingB.provedC.was provedD.has b

题目详情


The cause he had devoted himself to __________a perfect success.
A.provingB.provedC.was provedD.has been proved
题型:单选题难度:偏易来源:不详

答案

B

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