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Who clean the blackboard yesterday?
答案是John did.就是想问问为什么是did而不是cleaned?
问题打错了是who cleaned
人气:199 ℃ 时间:2020-05-26 03:00:08
解答
john did did就代指(cleaned the blackboard)
如果说john cleaned 就缺少一个宾语 如果说John cleaned the blackboard 又显得没John did那么简洁 所以就不说john cleaned
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