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lucy mus have finished reading the long novel yesterday,____

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lucy mus have finished reading the long novel yesterday,____?
a.mustn't she
b.didn't she
c.needn't she
d.should she
lucy mus have finished reading the long novel yesterday,____
B.didn't she
再问: 可以简单分析一下吗,谢谢
再答: 这里的must是对过去发生动作或事情的一种推测,在这种情况下,其反意疑问句通常要借助于其他助动词,即be和do