Joke of the day

Was teaching my P1s 汉语拼音, telling them “dei” （得）很少用。This adorable boy, who's always very responsive in class shot up his hands quickly...thinking that he has something to say, I let him voice out his thoughts. To my amusement, he actually said out loud: “tey o”..almost couldn't control my laughter with the rest of the kids...=D