Wemustkeeptheclassroomtidyand_________allthetime.A.cleanlyB.clearlyC.clearD.clean
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题目内容：
We must keep the classroom tidy and _________all the time.A.cleanly B.clearly C.clear D.clean
优质解答
D
keep +形容词
keep the classroom tidy and clean 保持教室整洁干净
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