OG12-65: In a plan to stop the erosion of East Coast beaches, the Army Corps of Engineers proposed building parallel to shore a breakwater of rocks that would rise six feet above the waterline and act as a buffer, so that it absorbs the energy of crashing waves and protecting the beaches. (A) act as a buffer, so that it absorbs (B) act like a buffer so as to absorb (C) act as a buffer, absorbing (D) acting as a buffer, absorbing (E) acting like a buffer, absorb
正确答案是C,这里的absorbing ... and protecting修饰的就是前面的buffer哈
OG12-30 39. For members of the seventeenth-century Ashanti nation in Africa, animal-hide shields with wooden frames were essential items of military equipment, a method to protect warriors against enemy arrows and spears.
A,a method to protect B,as a method protecting C,protecting D,as a protection of E,to protect
回LS: 首先你问的这个问题答案里头并没有ving和完成时的并列,而是animal-hide shields... were essential items..., protecting... 这里protecting引导的modifier是作为主语animal-hide shields(同时因为这里是主系表结构,shields=items of military equipment)的补充修饰,不是伴随。