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题型：单选题 题类：常考题 难易度：普通
辽宁省朝阳市建平县2018-2019学年八年级下学期英语期末考试试卷
—Oh, I am doing some _____ to better understand what is happening to our earth.
一Yes, the town is famous for its buildings．
—About five hours' drive.
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