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题型：单词拼写（单句） 题类：常考题 难易度：容易
北师大版初中英语七年级下册Unit 1 Daily Life Lesson 3 Safety First同步练习
— No, it's very dangerous. You mustn't go until the traffic lights turn green.
—Yes. A bus fell into the Changjiang Rever from the bridge. It's a pity.
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