Use of English · Part 1
In Africa, scientists (0) ARE hard at work (1) .......... land once rich with biodiversity and vegetation. Eleven countries in the Sahel-Sahara region have (2) .......... to combat land degradation and bring back native plant life to the landscape. In recent years, northern Africa has seen the quality of arable land…
Desbloqueja tots els exàmens, simulacions il·limitades, les 80 fases del joc i molt més.