That Sunday, we were packing to leave for a week away my son heard cries for help.A. when B. whileC.

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编辑：chaxungu时间：2026-04-27 03:21:33分类：高中英语题库

【题目】That Sunday, we were packing to leave for a week away _____ my son heard cries for help.

A. when B. while

C. as D. because

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【答案】A

【解析】

考查固定句式。be doing sth....when...,正在做某事的时候，这时突然---。句意：那个星期天，我们正打包离开去度周末，我儿子突然听到呼救声。故选A。