∵平行四边形ABCD∴AB∥CD,哗脊运AB=乱梁CD∵AE=CF∴平行野没四边形AECF (对边平行且相等)∴AF∥CE∵BE=AB-AE,DF=CD-CF∴BE=DF∴平行四边形BFDE (对边平行且相等)∴BF∥DE∴平行四边形EHFG (两组对边平行)