试题 试卷
题型：单选题 题类：常考题 难易度：普通
新目标（Go for it）版2018-2019学年初中英语八年级下册Unit 9 Have you ever been to a museum？单元过关检测卷（含听力音频）
—I think it is because of the aging of population (人口老龄化).
—_______ I _______ go hiking.
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