The Gentleman ______ you told me yesterday proved to be a thief.

问题描述:

The Gentleman ______ you told me yesterday proved to be a thief.
A.who B.about whom C.whom D.in which

B
先行词是Gentleman 是人,所以用who/whom,而tell sb about sb ,此处应做宾语,而且不能省掉介词about ,所以用about whom