Question

Elias is a poor black worker _____________(Mandela提供过指导)on the legal problems.(whom)

Answer 1

to whom Mandela offered guidance                                          

考查定语从句，先行词是a poor black worker，动词词组：offer guidance to意思为向某人提供指导，将介词to提到关系代词whom前面，引导定语从句，也可以说whom Mandela offered guidance to。句意：Elias是Mandela提供过法律指导的一个贫穷的黑人。