1577年，大学生张居正的父亲去世，按照祖制，张居正应回原籍丁忧守制。年已十五岁的万历皇帝需要元辅不可或缺的襄助，决定以“夺情”而不以守制的先例予以慰留。虽然翰林院几十名官员以有悖伦理为由向张居正提出劝告，但张居正始终没有回家丁忧。这件事本质上反映了(  )

单句改错

①Struggled in a world of silence and darkness, Helen Keller seemed to be simple-minded.____

②The three Bronte sisters adopted this practice, Mary Ann Evans did the same.

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③We decided to fight against this unfair system which prohibits us blacks sitting where we like.____

④Our friendship had developed quickly over the weeks that followed.____

⑤Maybe if I studied science then,I would have been able to give you more help.

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