【题目】There was a murder in one of the poorest suburbs in the city the other day. Now the police are turning the whole house upside down __________ clues.
A. in want of
B. in search of
C. in favor of
D. in memory of
在线课程【答案】B
【解析】本题考查介词短语。in want of需要；in search of 寻找；in favor of支持；in memory of为了纪念。由句 意可知B项正确。