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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,*,*,Unit 2,Cleaning Day,1/15,blackboard,chair,desk,window,door,classroom,2/15,blackboard,desk,chair,window,door,3/15,door 门,4/15,Singing,singing,he is,singing,.,Dancing,dancing,he is,dancing,.,5/15,Running,running,they are,running,.,动词加ing表示正在进行,6/15,clean 把.弄干净,7/15,Lets clean the classroom,8/15,clean the window,Sally is,clean,ing,the window.,9/15,clean the desk,Lily is,clean,ing,the desks.,10/15,clean the chair,Yang Ming is,clean,ing,the chair.,11/15,clean the door,Wang Tao is,clean,ing,the door.,12/15,clean the blackboard,He is,clean,ing,the blackboard.,13/15,stand 站,He is,stand,ing,on a chair.,14/15,stand,She,is standing on,a chair.,They,are cleaning,the windows.,15/15,
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