Final answer:
The sentence 'Nous avons choisert de rester à la maison.' is grammatically incorrect because the verb 'choisert' is not the correct form of 'choisir' in the past participle.
Step-by-step explanation:
The sentence 'Nous avons choisert de rester à la maison.' is grammatically incorrect. The verb 'choisert' is not the correct form of the verb 'choisir' in the past participle. The correct form is 'choisi'.
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