Before the singular form of a countable noun we usually use whole or entire: ‘We spent whole the lesson singing songs.’ ‘The entire document will have to be rewritten.’ Note that sometimes both all and whole/entire are possible: ‘it rained the whole/all the afternoon.’ In these cases, whole/entire provides greater emphasis and often expresses a feeling of surprise, disappointment, satisfaction etc: ‘I read the whole book in just two evening.’
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