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She is a quiet girl at school,but sometimes she _____ be very naughty.
A.shouldB.wouldC.can D.will
C

试题分析:句意为:在学校里,她是一个很温顺的女孩儿,但是有时候她可能也很淘气。情态动词表推测的用法。should 表应该;would 表示意愿;can用于否定句表推测,不可能,也可用于肯定句表推测,表示理论上存在发生的可能性,并不一定就是发生了; will表将来,也表人的意愿。小女孩儿很娴静,但也存在淘气的可能性。
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