二、完型填空。阅读下面短文，从短文后所给各题四个选项A、B、C、D中选出能填入相应空白处的最佳选项。共3题，每题1分，共3分。 Martin Luther King. Jr．was born in Georgia in 1929．When was still a boy Martin learned that his people，the black Americans，were often treated differently from most of (114) fellow Americans．Many could not attend good schools， get good jobs，or live in nice houses because of the color of their (115)．Martin knew that in a free country this was wrong．He wanted to help his black brothers．(116) he decided to go to school and become a minister.
A．his
B．those
C．most
D．their