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Who has cleaned the blackboard?Zhang Shuangwei_
A has B have C had D does
人气:293 ℃ 时间:2020-02-15 13:22:39
解答
选D,本句缺少实义动词,而has只有“有,吃”的意思.does实义动词有“做……”的意思可以代替clean做实义动词,那麽这句好补充完整就是Who has cleaned the blackboard?Zhang Shuangwei does.意思就是:谁擦的黑板?张爽为擦的(黑板).
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