<p>From McGill’s website:</p>
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<p>The main French-language universities in Montreal are Universite de Montreal and UQAM. But Montreal is said to be the most bilingual city in the world, roughly 70% speaking French at home and 30% speaking English at home, but with most English speakers at least functional in French and vice versa.</p>
<p>Have you considered Middlebury? Very strong on languages but also good in social sciences.</p>
<p>[EDIT: sorry about the cross-post].</p>