—Who do you guess I am? —Sorry，your namemy mindA. slipped B. has slipped C. had slipped D

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A. slipped
(答案→)B. has slipped
C. had slipped
D. slips
解析：考查时态。Slip my mind指忘记了，对现在产生了影响，即猜不出他是谁。A选项暗指现在想起来了。C，过去的过去，显然不符合题意。 D，显然没有B选项符合题意。