Do you know where from?A. he comeB. he comesC. did he comeD. does he came

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A. he e
(答案→)B. he es
C. did he e
D. does he came
解析：本题know后跟的是一个宾语从句，用正常的顺序，故不选CD，从句主语是he，故用es，故本题选B。