They with the aim of being number one in the league.
A. set up
B. set about
C. set out
D. set aside
网友回答
A. set up
B. set about
(答案→)C. set out
D. set aside
解析：考查词组：A. set up建立，B. set about出发，开始（后面接doing），C. set out出发，开始（后面接不定式），D. set aside放置一边，句意：他们带着成为团队里面第一名的目标出发了。Set out是不及物的短语，set about是及物短语，选C。