2. 职称英语
  3. He ______ten lectures on American history, but he only gave two because of his i

He ______ten lectures on American history, but he only gave two because of his i

游客2023-11-11  68
问题 He ______ten lectures on American history, but he only gave two because of his illness.
选项 A、might have given
B、could have given
C、should have given
D、must have given
答案 C
解析 情态动词题。might have done表示“过去可能发生的事情”，实际上没有发生，含有责难之意；could have done表示“过去能做某事而实际上没做”，含有遗憾之意；should have done表示“过去本应该做某事”，但事实上未做；must have done表示对过去情况肯定的推测，意为“肯定做过某事”，根据题意应选[C]。
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