(2013·高考陜西卷)The children________lost in the woods；otherwise，they would have been at the lakeside camp as scheduled.
A．must have gotB．must get
C．should have gotD．should get
A
選A。題干的意思是：“孩子們一定是在森林中迷路了；否則的話他們會按計劃在湖邊露營的。”從題干中的otherwise后面表達的情況來看，前半句應該是表示對過去的肯定推測，所以要用must have done結構，意為“一定/想必已經(jīng)……”。
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