．—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
考查情態(tài)動(dòng)詞。couldn’t 不可能，mustn’t 禁止，needn’t 沒有必要，shouldn’t 不應(yīng)該，句意：Margaret不應(yīng)該整天呆在家看電視。是的，她應(yīng)該和我們?nèi)ソ】抵行�。所以選D。
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