标题: OG10--69 请教B到底错在哪里？若要用while应该如何改正？ [打印本页] 作者: sarahbaby 时间: 2010-12-2 14:49 标题: OG10--69 请教B到底错在哪里？若要用while应该如何改正？ 69. Although she had signed a pledge of abstinence while being an adolescent. Frances Willard was 35 years old before she chose to become a temperance activist. (A) while being an adolescent (B) while in adolescence (C) at the time of her being adolescent (D) as being in adolescence (E) as an adolescent