牛津译林版2017—2018学年八年级上册 Unit 5 Task课时练习

适用年级：初二
试卷号：249081

试卷类型：课时练习
试卷考试时间：2018/3/13

1.单选题(共1题)

—Shall we keep the windows _______ ?
—Sure , so that we can let clear air in . But when we leave the classroom , they must be ______ .

A．opened , closed

B．closed , open

C．close , opened

D．open , closed

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