[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"exercise-B2-1141":3},{"preview":4,"open":14,"missing":37},{"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":19,"access":20,"updated":21,"previous_id":22,"next_id":23,"previous":24,"next":28,"first":32},1141,31,68,"B2","reading","multiple_matching","reading_multiple_matching","US Prisons","us-prisons",null,"Located on an island in San Francisco Bay, Alcatraz was one of the most famous high-security prisons in the U.S. before it closed in 1963. Often referred to as \"The Rock\", it was known for its isolated location and the belief that escaping was impossible due to the cold, strong currents surrounding it. Alcatraz held…",[17,18],"Which prison was located on an island and believed to be impossible to escape from?","Which prison has been featured in many movies because of its appearance?","login","pro","2026-10-02T14:14:49",1140,1142,{"id":22,"number":25,"title":26,"slug":27},30,"Vital Vitamins","vital-vitamins",{"id":23,"number":29,"title":30,"slug":31},32,"Beaches of the USA","beaches-of-the-usa",{"id":33,"number":34,"title":35,"slug":36},1111,1,"Bridges of the Valley","bridges-of-the-valley",false]