The retired man donated most of his savings to schools damaged by the earthquake in Yushu, ______ the students to return to their classrooms.
A、
enabling
B、
having enabled
C、
to enable
D、
to have enabled
【正确答案】
A
【答案解析】
不定式引导目的状语从句，这里要引导结果状语从句，故排除C和D。这里应该用现在分词作状语。B项表示该动作发生在谓语动词所表示的动作之前，排除B。故选A。
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