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He, along with his brothers, ______ how serious the situation is.
A.haven’t realizedB.hasn’t realized
C.don’t realizeD.didn’t realize
B

试题分析:考查时态和主谓一致。本题的主语是He, along with his brothers,谓语动词应该与he保持一致,故使用单数的形式。另外本题中没有出现过去时的时间状语。句意:他和他的兄弟已经意识到了情况是多么的严重。根据句意说明使用现在完成时的时态。故B正确。
点评:英语中的时态主要由动词的形式决定,因此在学习英语时态时,要注意分析动词形式及具体语境,想象在那个特定的时间动作所发生的背景,这个动作是经常性动作、一般性动作、进行性动作、完成性动作还是将要发生的动作。
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