Use of English · Part 2
Why don't penguins fly? The answer lies (0) IN the way penguins evolved, or changed slowly (1) .......... thousands of years. Birds generally fly to find food, to avoid danger, and to reach safe places for building nests and raising their young. But as ancient penguins evolved, they filled niches, or special roles in…
Desbloqueja tots els exàmens, simulacions il·limitades, les 80 fases del joc i molt més.