Mr.Johnson was taking a walk, by his grandson.A.supportingB.supportedC.to be sup
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Mr.Johnson was taking a walk, ________ by his grandson.
A.supporting
B.supported
C.to be supported
D.having supported
试题答案
B
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。