Mrs.Li devoted the last years of her life premarily___writing her autobiography(自传）

A：to

devote ... to ... 把...投入(专门使用于)....

把自己过去几年的时间都用于写自传

devote...to

devote， dedicate， consecrate， pledge
These verbs are compared as they mean “to give to a particular end and especially to a higher purpose.”
这些动词在表示“奉献给某个特别的目的，尤指高尚的目标的意思”时是可比的。
Devote implies faithfulness and loyalty:
Devote 意指忠诚和忠心：
Nurses devote themselves to the care of the sick.
护士致力于病人的护理事业。
Dedicate connotes a solemn, often formal commitment:
Dedicate 意味着一个誓言，通常为正式的许诺：
“To such a task we can dedicate our lives and our fortunes, everything that we are and everything that we have” (Woodrow Wilson).
“为了完成这个任务，我们可以贡献我们的生命和财产，我们就是一切，我们拥有一切” （伍德罗·威尔逊）。
Consecrate suggests sacred commitment:
Consecrate 表示神圣的行为：
His entire life is consecrated to science. To
他毕生的精力都献给了科学事业。
pledge is to back a personal commitment by a solemn promise:
Pledge 通过一个誓言而落实到个人行动上：
“I pledge you, I p