In the background was that {{U}}eternal{{/U}} hum

题库:综合类 类型:最佳选择题 时间:2017-07-03 03:16:26 免费下载:《单选题》Word试卷

In the background was that {{U}}eternal{{/U}} hum
A.long
B.never-ending
C.boring
D.extensive

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