2. 职称英语
  3. The ground is wet; it ______ last night.A、might have been rainingB、can have rai

The ground is wet; it ______ last night.A、might have been rainingB、can have rai

游客2023-10-11  47
问题 The ground is wet; it ______ last night.
选项 A、might have been raining
B、can have rained
C、should have rained
D、must have rained
答案 D
解析 情态动词must除了表示“必须”外，后面加动词原形或动词的完成可用来表示对现在或者过去发生的事情的推测，表示“一定是，准是”。例如：Judging by the smell，the food must be good．从香气上来判断，这菜一定很好吃。He must have been there last week．他上周一定在那儿。
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