题目内容：

1、Alec asked the policeman____he worked to contact him whenever there was an accident.
A.with him B.who C.with whom D .whom
2、We all went out ___the lost boy.We had___everywhere,but didn't find him.
A、searching；searched B、searching；searched for
C、in search of ；searched D、in search of ；searched for

优质解答

1.C.with whom (介词+关代,引导定从)
2.C、in search of 寻找 ；searched (search +地点.搜寻某处)