CREATE TABLE table_204_845 (id NUMBER, "round" NUMBER, "circuit" CLOB, "location" CLOB, "date" CLOB, "pole position" CLOB, "fastest lap" CLOB, "winning driver" CLOB, "headline event" CLOB)

what city was the race held before montreal on august 24 ?
SELECT "location" FROM table_204_845 WHERE "date" < (SELECT "date" FROM table_204_845 WHERE "location" = 'montreal' AND "date" = 'august 24') ORDER BY "date" DESC LIMIT 1
SELECT "location" FROM "table_204_845" WHERE "date" < (SELECT "date" FROM "table_204_845" WHERE "date" = 'august 24' AND "location" = 'montreal') ORDER BY "date" DESC FETCH FIRST 1 ROWS ONLY