Надо вставить at , in или  on.  Надо вставить at , in или  on. 1.I live ...... 24 Primrose Street2.My mother lives ...... a big block of flats ...... London3.Janets flat is ..... the ground  floor\4."Where is the  toilet , please?" "..... the  second floor"5."Is there a doctor  near here?" "Yes, ..... 17 High Street"6.They lived ...... America ...... 1990