——Do you know him well ?——Sure .We ___friends since ten year

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——Do you know him well ?——Sure .We ___friends since ten years ago.
A.were B. have been C.have become D.have made
答案是B ,为什么?求解释.

首先,答句的时间短语是since 10 years ago,这和for ten years是一样的效果,所以横线上的谓语动词需要是完成时的可延续性动词,become和made都是非延续性的瞬时动词,所以选B.

——Do you know her well ——Sure .We ___friends since ten years Do you know him well? -Sure.We()friends since ten years ago. —Do you know Jake well?—Of course,we ______friends since ten .Do you know him well?Sure,we___friends since ten years ago. —Do you know Betty very well?——Yes ,she and I ___friends sin Do you know him will?---Sure.We ____ friends since ten years do you know him well?---sue,We __friends since ten years ago 英语题解释—Do you know the young man well?—Sure, we __________ fr How well do you know him? Do you know huang ting well?Yes,she and I _friends since we Tell him to come to see me,well you?Sure.I will let him know Do you know who（——）the party last year填空