__no rain for a long time,the ground was very dry.A There having beenB There has beenC There had beenD There was课代表报的答案是A,为什么不是C呢
參考答案:A现在完成进行时,是指从过去到现在很久都没有下雨,这个动作可能持续,也可能不持续,也就是说以后也许还不会下雨,也许会下雨.C是说过去的事情,如果过去很久没下雨,现在下雨了呢?而且过去不下雨现在the ground was very dry一定吗?