Theboss______theworkerhowtodoit,ortheaccidentcouldn'thavehappened.

发布时间：2020-08-13 17:42:53

The boss______ the worker how to do it, or the accident couldn't have happened.A.can't have toldB.ought to tellC.could have toldD.mustn't have told

网友回答

A解析抓住关键“or”，意为“否则”，所以前后意思相反。
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