Use of English · Partie 2
Urbanization (0) HAS been a constant factor in human development for the past ten thousand years. (1) .......... there has always been the necessity for a minimum - sometimes a very substantial minimum - of the population to work the land, such surplus individuals as can be sustained have tended to gather in cities.…
Débloque tous les examens, des simulations illimitées, les 80 étapes du jeu et plus encore.