问题描述：
.I don't know why .A) he come here B) does he come C) he came here D)did he do come here
.I don't know why .A) he come here B) does he come C) he came here D)did he do come here
.I don't know why .A) he come here B) does he come C) he came here D)did he do come here
问题解答：
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