题目内容
---Did you listen to the speech?
--- No, we ______ it. But we had a lot of traffic on our way.
| A．could have attended | B．must have attended |
| C．could attend | D．shouldn't have attended |
A
该题考查的是虚拟语气，表示“本能……”是与过去事实相反，要用could+have done形式。
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