—Have you seen Maragaret? The boss is looking for her everywhere.
—She the train, otherwise she would have arrived here by now.
A. should have missed
B. must have missed
C. had missed
D. might miss
网友回答
A. should have missed
(答案→)B. must have missed
C. had missed
D. might miss
解析：考查情态动词表示推测。根据后面的otherwise she would have arrived here by now（要不然她就会到了）说明是对过去所发生的情况的推测。故使用“情态动词+have done”的形式。Should have done本应该做某事，实际上却未做；must have done一定做了某事；句意：—你看见Maragaret了吗？老板到处找她。—她一定错过了火车了，要不然，她会到了的。故B正确。