Mr.Johnsonwastakingawalk,______

发布时间:2020-07-28 11:33:22

Mr.Johnson was taking a walk, ________ by his grandson.A.supportingB.supportedC.to be supportedD.having supported

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B解析这里考查分词作状语,support与主语Mr.Johnson为逻辑上的被动关系,所以用过去分词,B项正确。
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