you ___him so closely:you should have kept your distance
A should't follow B mustn't follow
c couldn't have been following d shouldn't have been following
选 d 我不太懂
人气：496 ℃ 时间：2020-05-25 03:12:26
解答
从题目的后半句用的是should have done sth说明你本该保持距离而没有做到保持距离,可以推测,之前一直保持的很近的距离,should have done 应该做(却没做)(虚拟语气) shouldn't have done 不应该做(却做了)(虚拟语气) ,这是固定用法,
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