答案：A

题目分析：考查devote的用法，devote one’s life to doing sth意思“贡献某人的生命做某事”，后面有介词from，介词后面跟动名词，所以选A

点评：devote的用法是高考常考内容，注意to后面跟动名词，要求考生做题时注意

即学即练：Busy as the working mother is, she still_____ a lot of time to her children.

A. devotes             B. spends           C. offers            D. provides

选A