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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）七年级上册Unit 5 Where did you go on vacation? Period 2 Section A (Grammar Focus-3c) 同步练习
— Thanks.
—Oh, that ______ a good idea.
—But many people still don't realize how serious the problem is.
— She _____ her bike.
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