Though she has been teaching us for only three years,I respect and love her very much.
Though she has been teaching us for only three years,I respect and love her very much.
teach为什么不用过去式,而用ing呢
teach为什么不用过去式,而用ing呢
英语人气：482 ℃时间：2019-10-23 06:51:44
优质解答
表示持续过程直到现在有多长时间,用现在完成进行时.即has been doing.
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