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Susan still looked very confused.She seemed ____ what the reply meant.A.not grasping.B.not having grasped.C.not to grasp.D.not to have grasped 请说明原因,

题目详情
Susan still looked very confused.She seemed ____ what the reply meant.
A.not grasping.B.not having grasped.C.not to grasp.D.not to have grasped 请说明原因,
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答案和解析
c