Once they had ______that he was not a spy, they agreed to release him.A、ascertai

游客2025-01-29 47

问题 Once they had ______that he was not a spy, they agreed to release him.

选项 A、ascertained
B、ascribed
C、averted
D、asserted

答案 A

解析这句话的意思是：一旦确认他并非间谍，他们就同意将他释放。ascertain意为“确定、查明”；ascribe意为“归因于、归咎于”：avert意为“防止、转移”；assert意为“断言、主张”。根据句意，选项A为正确答案。

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