Not having received an answer ,she decided to write another

学习时间:2026-06-05 18:28:22 阅读：9139

Not having received an answer ,she decided to write another letter .请问 having 为何不能省略?

酷酷的寒风

2026-06-05 18:28:22

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过去的过去用过去完成时态,因为是先没有收到回信她才会再接着写一封写信是发生在过去所以前面没有收到信就用过去完成时态
having 不能省
ing形式是主动或者进行在这里收信是主动所以用ing 不能直接说 received
那样的是表达被动的