Every possible means _______ to save the wounded hero up to now.E_英语解答

Every possible means _______ to save the wounded hero up to now.
Every possible means _______ to save the wounded hero up to now.
A.have tried B.has tried C.have been tried D.has been tried

人气：371 ℃　时间：2020-04-14 01:11:50

解答

every 是单数
被动语态,动词的过去分词前要有be动词

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