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题型：单选题 题类：常考题 难易度：普通
鲁教版（五四制）初中英语九年级Unit 9单元整合
一 In my opinion, you can do nothing but wait for the result.
—About 15 years ago.
—Certainly. It can ________ us ________ getting terrible diseases.
—In about 40 minutes.
—Don't worry．We are sure to be at school _____．
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