Young people are keener ___ high pay and promotion but less conc

Young people are keener ___ high pay and promotion but less concerned with security and job satisfaction than older people.
A、on
B、to
C、for
D、at
【正确答案】：A
【题目解析】：本题考查形容词词组的固定搭配。 be keen on表示“喜爱”。