mustn't have hurried
couldn't have hurried
must not hurry
needn' t have hurried
本题句意: 时间很充裕，她没必要着急。 mustn' t have done用法错误，对过去发生的事情进行否定推断应为 couldn' t have done意为“不可能已经做了＂。 must not do意为“不可以”（用于一般现在时）。needn' t have done意为“本不必做”，即已经做了某事，而实际上没必要做。故选D。
