as的疑惑

puqiandi · 发表于 2010-5-31 08:21:55

1.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
答案是E，当初在B和E中忧郁，后来想到as后面要句子所以选了B，这里as做何解呢？还有B为何错？

yawgamoth86 · 发表于 2010-5-31 08:30:54

while in 表示持续性的动作
而句子前面是过去完成时
如果你要用while 则必须改为 while she was。。。。
而且 E中 adolescent和后面的activist似乎也有平行的意味

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