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题型：单选题 题类：常考题 难易度：普通
小学广东版(先锋、开心)开心学英语2017-2018学年三年级下册Unit 5 Clothes第二课时习题
Don't throw waste paper on the floor.
My birthday is in May.
We're going to research wild animals in China.
What are we going to do?
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