Use of English · Parte 3
One of the most (0) AMAZING advances ever made in medicine began with an (1) .......... (EXPECT) event. Sir Alexander Fleming had been looking into the (2) .......... (POSSIBLE) of finding a better way of killing germs when he came upon something (3) .......... (PUZZLE) in his laboratory. Some mould that had…
Desbloquea todos los exámenes, simulaciones ilimitadas, las 80 fases del juego y mucho más.