试题 试卷
题型：单选题 题类：常考题 难易度：容易
山西省阳泉市平定县东关中学2019-2020学年七年级下学期英语3月教学质量检测试卷
—We must keep quiet.
—It's a useful ________，so we must learn it well.
—I'll say. How to keep the air fresh is a big ________ for us.
—I'm an actor.
试题篮
