Unless ________ , the murderer is likely to commit similar or further offences.
题型：不详难度：来源：
Unless ________ , the murderer is likely to commit similar or further offences. | A．to arrest | B．arrested | C．been arrested | D．arresting |
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答案
| B |
解析
| 考查非谓语动词。主语the murderer与arrest之间是被动关系，所以用过去分词arrested，选B。 |
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