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.—Margaret ______ stay at home all day long in front of the TV.
—That’ s right.She ought to go to the fitness center with us.
A.couldn’tB.mustn’tC.needn’tD.shouldn’t
D
考查情态动词。couldn’t 不可能,mustn’t 禁止,needn’t 没有必要,shouldn’t 不应该,句意:Margaret不应该整天呆在家看电视。是的,她应该和我们去健康中心。所以选D。
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