If the captain ____more careful, his ship would not have been sunk.A、should beB

游客2024-09-27  9

问题 If the captain ____more careful, his ship would not have been sunk.

选项 A、should be
B、were to be
C、Were
D、had been

答案 D

解析 虚拟语气。if引导的非真实性条件句,表示与过去事实相反的情况,从句用“if+主语+had+-ed分词”结构,主句使用“主语+would have+-ed分词”结构。
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