如何计算二手车价格:单向选择
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When I said some students are lazy, I ___ to you.
A. wasn't referring B. didn't refer
选A,为什么?
A. wasn't referring B. didn't refer
选A,为什么?
表示当时的动作,用过去进行时
A
指的是特定的一次“我说有人懒”