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英语
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-Do you know who cleaned the blackboard,Tina?-Yes,John___.A.do B.does C.did
答案选择的是B 为什么?为什么不是C?
人气:352 ℃ 时间:2020-05-04 04:30:43
解答
C.
问的是who cleaned,过去时
回答也要用过去时,did
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