---WhendidyoucomebackfromBeijing?---________themorningofApril18th.A.AtB

发布时间：2020-08-06 18:29:10

---When did you e back from Beijing?---________ the morning of April 18 th.A.AtB.WithinC.OnD.In

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C解析此题考查介词。morning, evening, afternoon, night具体到某一特定日期介词用on。
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