The correct pronoun to complete the sentence is 'us', making it read: 'The dog waited for us at the door.' Other options like 'ourselves' and 'our' do not fit the grammatical structure of the sentence. Therefore, choose 'us' for a grammatically correct and logical completion. ;
The correct pronoun to complete the sentence is 'us', resulting in 'The dog waited for us at the door.' The other options, 'ourselves' and 'our,' do not fit the grammatical structure of the sentence. Therefore, 'us' is the best choice.
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