题目

I was very busy yesterday，otherwise I________ to the meeting. A．came  B．would have come C．had come  D．would come 答案：B　[句意：我昨天很忙，要不然，我就来参加会议了。根据句意可知，这里表示与过去事实相反的情况，所以用would have done，选B。 ]

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