2. 职称英语
  3. Miss Anne had a weak heart. She _____ a heart attack.A、should haveB、should have

Miss Anne had a weak heart. She _____ a heart attack.A、should haveB、should have

游客2023-10-31  50
问题 Miss Anne had a weak heart. She _____ a heart attack.
选项 A、should have
B、should have had
C、must have
D、must have had
答案 D
解析 考查情态动词的用法。根据句意，应填入对过去发生的事有相当把握猜测的词，这里只有must have done能表达这样的意思。should have done意为“本该……”。
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