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谁加过去分词 过去分词后能加形容词吗
为什么有的是have been再加动词过去分词? have been done这叫现在完成时的被动形式现在完成时的被动语态的肯定式为:havehas+been+done。如:The experiment has been done succ...
为什么有的是have been再加动词过去分词? have been done这叫现在完成时的被动形式现在完成时的被动语态的肯定式为:havehas+been+done。如:The experiment has been done succ...