Use of English · Parte 2
Scientists have (0) BEEN constantly warning us that the earth is turning (1) .......... some kind of gigantic greenhouse and in the future there (2) .......... be a rise in temperatures everywhere. But other scientists disagree. They say that certain parts of the earth are not (3) .......... to get warmer but are…
Desbloquea todos los exámenes, simulaciones ilimitadas, las 80 fases del juego y mucho más.