With all your brains you________the math test, but you failed. You were too care

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问题 With all your brains you________the math test, but you failed. You were too careless.

选项 A、should pass
B、should have passed
C、must pass
D、must have passed

答案 B

解析本题考查情态动词用法。should have done表示本应该做的事情却并没有做。must have done表示对已发生的事情的一种肯定的猜测。should do应该做；must do必须做。故选B。句意为：你专心一点的话本应该通过数学测验的，但你却失败了。你是太粗心了。

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Withallyourbrainsyou________themathtest,butyoufailed.Youweretoocare