题目内容
He ______. It's a shame my mobile phone was power-off.
| A.ought to call me | B.could have called me |
| C.may be calling me | D.might call me |
B
could have done对过去时间里发生的事情的推测“可能……过”。
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题目内容
| A.ought to call me | B.could have called me |
| C.may be calling me | D.might call me |