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Unit 1 Could you please clean your room? Unit 2 Why don't you talk to your parents? Unit 3 What were you doing when the rainstorm came? Unit 4 An old man tried to move the mountains Unit 5 What's the highest mountain in the world? Unit 6 Have you read Treasure Island yet? Unit 7 Have you ever been to a museum? Unit 8 I've had this bike for three years. 课文注释 录音原文 英语语法 单词表
