题目内容

He, along with his sister, ______ how serious the situation is.
A．haven’t realizedB．hasn’t realized
C．don’t realizeD．didn’t realize
B
考查时态。主语是He，谓语用第三人称单数，排除A,C;且根据is，又可排除D，所以选B。还没有意识到现在的情况有多糟糕。
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