[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-C1-3704":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},3704,66,110,"C1","use_of_english","word_formation","uoe_word_formation","The Origins of Halloween","the-origins-of-halloween",null,"Halloween is celebrated in many parts of the (0) WESTERN (WEST) world and is a time when people dress up as witches or ghosts and go 'trick-or-treating'. It is (1) .......... (DOUBT) one of the most popular traditions in the United States and Britain. The celebration (2) .......... (ORIGIN) about two thousand years…",[],"login","pro","2026-10-02T14:14:49",3703,3705,{"id":20,"number":23,"title":24,"slug":25},65,"Leonardo da Vinci","leonardo-da-vinci",{"id":21,"number":27,"title":28,"slug":29},67,"Getting to the Airport","getting-to-the-airport",{"id":31,"number":32,"title":33,"slug":34},3639,1,"Training a Sharper Memory","training-a-sharper-memory",false]