Several rounds of air and ground attacks from the allied force left the whole Bagdad, capital of Iraq, ______.
A.in piecesB.in ruinsC.on ruinsD.on pieces在线课程B
句意为“空袭与地面战斗使伊拉克首都巴格达沦为一片废墟”。in pieces指“破碎；落空”。