have/had + been/be?总是搞不懂究竟是have/has been还是had been?怎么用?在什么时候请举几个例子再问一问：Had you been to Beijing你曾想过去北京吗？）He had been to Jinan before he came.在他来之前他曾想要去
来源：学生作业帮助网 编辑：作业帮 时间：2024/08/02 08:34:59
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