问题
填空题
A passport is a document (issue) （）by a country to its citizens that permits them to leave and re-enter the country.
答案
参考答案：issued
解析：
非谓语动词
分词作定语，根据句意应用过去分词。
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A passport is a document (issue) （）by a country to its citizens that permits them to leave and re-enter the country.
参考答案：issued
解析：
非谓语动词
分词作定语，根据句意应用过去分词。