She's aiming a scholarship. That is why she has been focusing her mind her work.
A. at; on
B. to; on
C. for; in
D. at; into
网友回答
(答案→)A. at; on
B. to; on
C. for; in
D. at; into
解析：考查介词：第一空填at，be aimed at“旨在”，第二空填on，focus one’s mind on 专注于，句意：她的目的是奖学金，这就是她为什么努力学习的原因。选A。