“Not having returned home yet, _________”, his father said to the police.A．his
题型：不详难度：来源：
“Not having returned home yet, _________”, his father said to the police.| A．his mother got worried | B．his mother must be worried | | C．I think he is missing | D．he must have got into some trouble. |
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答案
| D |
解析
| 句意：他的父亲对警察说：“还没回到家呢，他一定陷入了困境当中。must have done表示对过去事情肯定的推测。所以选D。 |
举一反三
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