试题 试卷
题型：单选题 题类：常考题 难易度：普通
广东省深圳市罗湖区2018-2019学年七年级上学期英语期末考试试卷
—I like collecting stamps best.
—Great! I'd like to write with it．
—A teacher.
— They're for public. This ______________ of green smart traffic is everywhere in Xiangyang City.
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