The three most important issues A of concern to citizens today are B prison reform , C abusing children , and D toxic waste .

单项选择题From Christianity and the barbarian kingdoms of the west Aemergedthe Bmedieval version ofpolitics Cby whichin turn Devolvedthe politics of our modern world.

单项选择题AJust as there areoccupations that Brequire college or even higher degrees, Cso too there areoccupations Dfor whichtechnical training is necessary.