题目内容
Jack ________ yet, otherwise he would have telephoned me. (NMET 1997)
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A．mustn't have arrived
B．shouldn't have arrived
C．can't have arrived
D．needn't have arrived
答案：C
解析：
解析：
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C项为“不可能已到……”，对过去发生动作的推测；B项“不应当已到”；D项为“不必已到”． |
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