Rule reminder
At C1/B2 level, comparatives appear in complex sentence structures combining: relative clauses, subjunctive mood, formal connectors, proportional structures, and multiple comparative elements in a single sentence. Mastery requires applying all comparative rules simultaneously and choosing the most precise and stylistically appropriate form.
La ricerca dimostra che le città _____ investono nel verde urbano presentano tassi di benessere _____ elevati.