这件事是谁告诉你的? Who told you about this? ⇒ Who was it that told you about this? Traditional 這件事是誰告訴你的? Pinyin Zhè jiàn shì shì shuí gàosù nǐ de? Bopomofo ㄓㄜˋ ㄐㄧㄢˋ ㄕˋ ㄕˋ ㄕㄨㄟˊ ㄍㄠˋ ㄙㄨˋ ㄋㄧˇ ˙ㄉㄜ? Where this sentence is used The 是…的 (shì…de) construction in Chinese grammar All Chinese example sentences