He must have had an accident, or he______then.A、would have been hereB、had to be

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问题 He must have had an accident, or he______then.

选项 A、would have been here
B、had to be here
C、should be here
D、would be here

答案 A

解析虚拟语气题。与过去事实相反的假设，主句谓语常用would／should havedone，从句用过去完成时。

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