注意：此页面搜索的是所有试题
题目内容
（国家开放大学英语机考）
Provide training in systematic methods so the team ______ its energy ______ the project.
A、expend…to
B、expend…in
C、expend…on
A、expend…to
B、expend…in
C、expend…on
参考答案