SAT语法 文章题( )an obvious life-serving goal,as they do in other behaviors such as finding food,mating,and resting.A.play does not help those animals achieveB.when they play,animals do not achieve 为什么A错了

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SAT语法 文章题
( )an obvious life-serving goal,as they do in other behaviors such as finding food,mating,and resting.
A.play does not help those animals achieve
B.when they play,animals do not achieve
为什么A错了

因为A的主语是play,而as引导的并列句的主语是they,显然不符.

关于SAT语法特点:SAT语法的难度介于TOEFL和GMAT之间,而题型更是把TOEFL的鉴别错误和GMAT的改正句子都兼顾了,而且还多了一种改正文章的新题型。其次,SAT