Part B(1)Lets talk book B.pen;books C.pens;books ( C )5.clean the classroom. A.LetsB.Let usC.A and B,二、根据句子选择相应的图片。 ( A )1.Lets clean the door,A )2.Lets clean the classroom,C )3.Let me clean the blackboard,三、读一读,选答语,A.Its near the window. B.Thank you. C.OK. D.Four lights and two doors,D )1.Whats in your classroom? ( A )2.Where is your desk? ( B )3.Let me help you. ( C )4.Lets clean the classroom,四、给下列句子排序。 ( 4 )Youre welcome. ( 1 )Lets clean our room. ( 2 )OK.Let me help you clean the windows. (