The bus came after I for about half an hour为什么I后面要填had been waiting?为什么不是had waited?wait不是持续动词吗?
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![The bus came after I for about half an hour为什么I后面要填had been waiting?为什么不是had waited?wait不是持续动词吗?](/uploads/image/z/7487533-37-3.jpg?t=The+bus+came+after+I+for+about+half+an+hour%E4%B8%BA%E4%BB%80%E4%B9%88I%E5%90%8E%E9%9D%A2%E8%A6%81%E5%A1%ABhad+been+waiting%3F%E4%B8%BA%E4%BB%80%E4%B9%88%E4%B8%8D%E6%98%AFhad+waited%3Fwait%E4%B8%8D%E6%98%AF%E6%8C%81%E7%BB%AD%E5%8A%A8%E8%AF%8D%E5%90%97%3F)
The bus came after I for about half an hour为什么I后面要填had been waiting?为什么不是had waited?wait不是持续动词吗?
The bus came after I for about half an hour
为什么I后面要填had been waiting?
为什么不是had waited?
wait不是持续动词吗?
The bus came after I for about half an hour为什么I后面要填had been waiting?为什么不是had waited?wait不是持续动词吗?
过去完成进行时had been waiting强调一直等到那个时候.had waited只是已经等
持续动词当然可以用于这里了
终止动词不行
have been doing sth 表示过去一段时间一直在做什么事