________hestayedattheseasidean

发布时间：2020-07-27 23:17:31

________ he stayed at the seaside and wrote his new book.A.All summer longB.In all long summerC.All long summerD.During all summer long

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A解析导解：long在句中是副词作状语，all短语作状语时不用介词，如all day/night long．
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