[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-C1-3625":3},{"preview":4,"open":14,"missing":35},{"id":5,"number":6,"total":7,"level":8,"course":9,"activity":10,"discriminator":11,"title":12,"slug":13,"instructions":14,"excerpt":15,"prompts":16,"lock":17,"access":18,"updated":19,"previous_id":20,"next_id":21,"previous":22,"next":26,"first":30},3625,87,100,"C1","use_of_english","open_cloze","uoe_open_cloze","The Invisible Hand","the-invisible-hand",null,"The concept of the free market, in (0) WHICH supply and demand determine the allocation of resources, has been the dominant economic model for centuries. At its heart lies the belief that individuals, simply (1) .......... acting in their own self-interest, collectively produce outcomes that benefit society as a…",[],"login","pro","2026-10-02T14:14:49",3624,3626,{"id":20,"number":23,"title":24,"slug":25},86,"A Dose of Prevention","a-dose-of-prevention",{"id":21,"number":27,"title":28,"slug":29},88,"The Ties That Bind","the-ties-that-bind",{"id":31,"number":32,"title":33,"slug":34},3539,1,"The Aurora Youth Orchestra","the-aurora-youth-orchestra",false]