问题补充:
Shes 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
答案:
(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。