CREATE TABLE table_52124 ("Airing date" TEXT, "English title  ( Chinese title ) " TEXT, "Number of episodes" FLOAT, "Genre" TEXT, "Official website" TEXT)

What is the english title of the modern drama, episode 20, that airs on 26 sep- 21 oct?
SELECT "English title (Chinese title)" FROM table_52124 WHERE "Genre" = 'modern drama' AND "Number of episodes" = '20' AND "Airing date" = '26 sep- 21 oct'
SELECT "English title (Chinese title)" FROM "table_52124" WHERE "Airing date" = '26 sep- 21 oct' AND "Genre" = 'modern drama' AND "Number of episodes" = '20'