4、ysisterissitting_______theclassroomtoseethesun.(2)Mysisterissitting_______theclassroomtoreadEnglishwithherclassmates.2.when while as(1)______Iwaswalkingonthestreet,Imetmyoldfriend.(2)Shewassinging______shewaswalking.(3)Iwaswalkingonthestreet_____Imetm
6、sawanoldwoman_____therestaurant.4.takeoff land takedown puton(1)I_____myclothesaftergettingup.(2)Theplane_______whenpeoplecamein.(3)AUFO________ontheplayground,manychildrenrantoseeit.(4)Please______yourcoat,itisveryhotoutside.(5)Thepictureistooold,pl