题目内容
Mr. King didn't know ________ yesterday evening.
A. when does his son come home B. when his son comes home
C. when did his son come home D. when his son came home
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题目内容
Mr. King didn't know ________ yesterday evening.
A. when does his son come home B. when his son comes home
C. when did his son come home D. when his son came home