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The keys: 一、1. Are ,flying,I am 2. Are sitting, 3.Is,talking 4. are plying 5. are,doing 6.am singing 7. is,mending 8. is mending 9.are plying 10.is cooking 二、1.C 2.B 3.C 4.A 5.A 6.B 7.C 8.D 9.D 10.B 1、working singing playing studying having dancing writing taking running sitting shopping swimming lying 2、The boy isn't playing basketball. Is the boy playing the basketball ? Yes,he is./No,he isn't, What's the boy doing? Who's playing basketball? They aren't singing in the classroom. Are they singing in the classroom? Yes,they are/No,they aren't. What're they doing? Where're they singing? 4、are doing singing is mending is mending Are flying I am Is sitting Are asking are playing doing am eating is working is putting Is cleaning is playing is running is singing is singing 5、CDCAB BBCAB CB (责任编辑：admin) |