CREATE TABLE table_204_985 (id DECIMAL, "season" TEXT, "competition" TEXT, "round" TEXT, "club" TEXT, "home" TEXT, "away" TEXT, "aggregate" TEXT)

what season was the only round 1 ?
SELECT "season" FROM table_204_985 WHERE "round" = '1'
SELECT "season" FROM "table_204_985" WHERE "round" = '1'