Question

【题目】When he was unknown ________the young people, he served ________ a singer at a bar.
A.for; for
B.to; as
C.for; to
D.to; to

Answer 1

【答案】B
【解析】句意：当他还是一个不出名的年轻的人的时候，他在一个酒吧里作为歌手。短语be unknown to不出名的意思；serve as....表示作为……服务。故选B。