Use of English · Part 3
Some of the (0) GREATEST (GREAT) steps forward in medicine began not with careful planning but with a totally (1) .......... (EXPECT) result that no one in the laboratory had foreseen. A young researcher had been exploring the genuine (2) .......... (POSSIBLE) of finding a cheaper way to destroy harmful germs when he…
Desbloqueja tots els exàmens, simulacions il·limitades, les 80 fases del joc i molt més.