The police the lost child and tried to find his parents.
A. took up
B. took in
C. took over
D. took after
网友回答
A. took up
(答案→)B. took in
C. took over
D. took after
解析：考察短语辨析。A占据，从事于，开始做；B收留，吸收，理解，欺骗；C接管；D像…像;与...相似；结合句意可知B正确。句意：警察收留了那个迷路的男孩，努力寻找他的父母亲。