2. 职称英语
  3. Investigators agreed that passengers on the airliner______ at the very moment of

Investigators agreed that passengers on the airliner______ at the very moment of

游客2023-11-23  61
问题 Investigators agreed that passengers on the airliner______ at the very moment of the crash.
选项 A、should have died
B、must be dying
C、must have died
D、ought to die
答案 C
解析 must have done用来表示对过去某动作的肯定推测，作“肯定，一定是”讲，例如：He must have been to England for he knows so much about that country．他一定去过英国，因为他了解那么多有关那个国家的事情。He must have forgotten to wind the clock last night．他昨晚准是忘记给表上弦了。
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