Never before ______________ the imortance of learning Engljsh as we do today

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Never before ______________ the imortance of learning Engljsh as we do today

never before 从来没有,后面需要接倒装句(部分倒装)
即把主语和助动词交换顺序.
根据推测,上文空白处应该填入“have we known/understood”

have we known/understood

have we known/understood/realized 或did we know/understand/realize