2. 职称英语
  3. It______Sam who called and didn’t leave a message on the answering machine. He s

It______Sam who called and didn’t leave a message on the answering machine. He s

游客2023-10-15  73
问题 It______Sam who called and didn’t leave a message on the answering machine. He said he wanted to get together with us this weekend.
选项 A、might have been
B、should have been
C、ought to be
D、ought to have been
答案 A
解析 首先由题干可知，空格处表达的是对过去的一种猜测，所以首先排除C。might have done sth表示对过去发生的事情的不肯定的推测；而should have done sth表示对过去发生的事情的推测时，是一种肯定的推测。should have done sth还可以表示“应该已经做了(但是没有做)”，这一点和ought to have done sth．一样。因为打电话的人没有在留言机上留言，所以只能是一种不肯定的推测，所以选A。
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