She didn't mind ___ all her spare time to ___ the sick old man.

来源：百度知道 编辑：UC知道 时间：2024/05/21 11:18:38
A.to devote;help B.devoting;helping
C.devoting;help D.to devote;helping
答案是B,请问为什么

B.
mind+doing.
spare time to中to是介词,+doing.

mind + doing
后面一个to是介词，所以也用doing

B. mind sb.doing sth.(介意某人做某事)是固定短语，spend ...（时间或金钱）(on) doing sth.也是固定用法。

b