题目内容


--I can’t understand why our boss is late.
--He _____the early bus.
A．could missB．may have missedC．can have missedD．might miss
B
考查虚拟语气。句意：我不能理解我什么我们的老板迟到了。——他可能错过了早班车。“may+have+done”表示对发生过的事情的推测，意思是“可能已经”或“也许已经”，故选B。
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