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He went to the post office to buy writing paper and .

编辑:chaxungu时间:2026-04-27 03:15:02分类:高中英语题库

【题目】He went to the post office to buy writing paper and (信封).

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【答案】envelopes
【解析】句意:他去了邮局买信纸和信封。信封是可数名词,故填envelopes。