Had they known what was coming next, they ___________ second thoughts.A．may have
题型：不详难度：来源：
Had they known what was coming next, they ___________ second thoughts.| A．may have | B．could have | C．must have had | D．might have had |
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答案
| D |
解析
| 本题考查虚拟语气的用法。本句是一个倒装句，可还原为：if they had known what was coming next, they might have had second thought。根据had known提示，可知是与过去事实相反，因此虚拟语气主句中应该用would/might have done，由此可见答案D符合语境。 |
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