Poor old women used to be burned for witchcraft when they could not even work enough magic to get themselves a square meal.
句意:有些可怜的老妇人常常被当成巫婆活活烧死,但事实上她们连为自己变出一顿像样的饭菜的 巫术都没有。a square meal意为丰盛的午饭。rectangular矩形。decent得体的;相当好的。fair公平的;合理 的;美丽的。formal正式的;正规的。B选项与划线处意义最为接近,故选B。