题目内容
He ________ without saying goodbye to them, for he always has good manners .
- A.mustn't have left
- B.may not leave
- C.shouldn't have left
- D.can't have left
D
解析：
导解：没有向他们告别，不会离开．否定的推测，从后半句可知他很有礼貌，所以应用can't．
解析：
导解：没有向他们告别，不会离开．否定的推测，从后半句可知他很有礼貌，所以应用can't．
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