句型转换: 1、_Lily and Lucy_ will visit their grandparenst next...答:划线提问的要领:划线提问用“替换法”。有三步:(1)用一个特殊疑问词(what, when, why, which, where, how等等)替换掉划线部分。(2)将特殊疑问词提前到句首。(3)谓语里如果有be动词(am, is,are, was,were),或情态动词(can, may, must, could, might, should,need等),或用于...