Algumas semanas atrás, quando fiz fila 

após o almoço, um de meus 

alunos me fez esta pergunta.

👍  willdouglas, pedrojunior, joaopaulo, tonyacastillo, majoaquina, bworld, adepto, enidtipton, debbiesaxton, nathanmor, victormcc, michellethomp, arlenejohnson, powerworld, limsonk, daniel35, susiebishop, firstman, glasswater, pedrohenrique, anwi, greatman2, michaelhayward, timesones1, laminesonko, dennisgin, maximusvinicius, scobra, terrim, ralphkline, joyceforbes, flanklima, niallcarson, laminesonko3, barbriv, suzannemurch, paulrober, normanagnar, philibert, frankian, pauladepto, luisabe, verdaforrest, bettyreed, felipeferreira, karenjac, kellyshock, ptos, airplan, markford, superposts, supercobra, supergoku, rihappy, maxvin, jerrybear, gifsbieber, pedhen, espaniolabulga, historiasavulsas, h2osuho, awesomeguy, deldash, benitobarco, and 274 others