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题型：单选题 题类：常考题 难易度：困难
鲁教版（五四制）初中英语九年级Unit 3 It must belong to Carla Period 3 Section A & Section B
- It will be worse ________ we take action to protect the environment.
— Not yet. I am in New York now. I'll finish it _______________ I come back.
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