And, in most cases, anticipating and providing answers for those predictable questions a reader might be expected to ask by adding information to the sentence, we will make the sentence more effective.其中的by是修饰ask还是那两个非谓语动词。除了语境还有什么好方法能准确明白修饰关系吗?
by adding information to the sentence这个介词短语是方式状语,修饰的是anticipating and providing answers这二个现在分词短语,整体是现在分词短语作原因状语。修饰关系其实就是一种逻辑关系,你分析一个介词短语修饰哪个词项,你必须通过逻辑分析。