试题 试卷
题型：单选题 题类：常考题 难易度：普通
河北省衡水市景县2018-2019学年八年级下学期月考英语试卷（含听力音频）
—________.
— . Look at the sign. It says "Be quiet".
—__________. The air here is much more polluted than in my country.
—________
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