could/should/must/.加have done和have been done区别
人气：122 ℃ 时间：2019-10-31 08:48:09
解答
情态动词+ have +过去分词 1) may(might) have + done sth, can (could) have + done sth 表示过去,推测过去时间里可能发生的事情. Philip may (might) have been hurt seriously in the car accident. Philip can (...
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