He operates the new machine as if he______special training in it.A、has received

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问题 He operates the new machine as if he______special training in it.

选项 A、has received
B、had received
C、would receive
D、received

答案 B

解析考查状语从句中的虚拟语气。as if／though引导的虚拟语气，如果从句中谓语动词先于主句谓语动词的动作或状态发生，从句应用过去完成时，故选B。

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