[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-C2-4896":3},{"preview":4,"open":12,"missing":28},{"id":5,"number":6,"total":7,"level":8,"course":9,"activity":10,"discriminator":11,"title":12,"slug":12,"instructions":13,"excerpt":14,"prompts":15,"lock":16,"access":17,"updated":18,"previous_id":19,"next_id":20,"previous":21,"next":23,"first":25},4896,55,60,"C2","writing","article","writing_c2_article",null,"You have seen this call for articles in a magazine about sustainable cities:","Should cars be banned from city centres? Several European cities have banned private cars from their historic centres, giving priority to pedestrians, cyclists and public transport.",[],"login","pro","2026-10-02T14:14:49",4895,4897,{"id":19,"number":22,"title":12,"slug":12},54,{"id":20,"number":24,"title":12,"slug":12},56,{"id":26,"number":27,"title":12,"slug":12},4842,1,false]