单选题 Ms. Suarez ______ for Chair of the Board in December 2009, and took up the position in March of the following year.
A. was nominated B. was nominating
C. had nominated D. will be nominated

【正确答案】 A
【答案解析】[解析] 这里应该选择被动语态形式，“被任命为董事长”，同时事情是发生在过去，所以选择A。