the children --------being taken good care of by Mary中空格应填are还是is
问题描述：
the children --------being taken good care of by Mary中空格应填are还是is
答
are
主语是孩子们 the children
所以谓语应用复数形式,be->are
句意：孩子们正被玛丽很好地照顾着.