ESERCIZIO NUM: 2800 - CATEGORIA: verbi > conditional - DIFFICOLTA': ****
CLICCA QUI per aprire un TUTORIAL sui VERBI prima di svolgere l'esercizio

Completa le frasi con il FIRST CONDITIONAL coniugando il verbo tra parentesi(01).

1 If they....(stop) putting toxic waste in rivers, there....(be) a lot of water pollution. 2 If farmers....(use) too many pesticides on fruit and vegetables, they....(not be) healthy for us to eat. 3 More animals....(be) at risk of extinction if people....(keep) poaching them. 4 If hunters....(kill) whales for food or sport, they....(soon be) extinct. 5 Tigers....(disappear) from our jungles if man....(continue) to hunt them.