【题目】The retired man donated most of his savings to the school damaged by the earthquake in Yushu, the students to return to their classrooms.
enabling
having enabled
to enable
to have enabled
在线课程【答案】A
【解析】句意：这位退休的老人把自己的大多数积蓄捐给了在玉树地震中被损坏的学校，从而使得学生们重新回到了教室。现在分词短语enabling… 做结果状语。