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  1. #1
    joham is offline Key Member
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    Default doing all they can/should/must

    The police still haven't found the lost child, but they're doing all they ________ ( can/ should/ must).
    The given answer is 'can'. Could we think of some special context where 'should' or 'must' can be used?

    Thank you in advance.

  2. #2
    English Freak's Avatar
    English Freak is offline Member
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    Default Re: doing all they can/should/must

    No, it makes no sense to use other modal verbs in this particular example. Not really meaningful.

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