1. By 2040 we ate only processed food.
2. The authorities predict that by 2070,lots of big cities became uninhabitated due to air pollution.
3. By the year 2100 many people live on the moon
1. By 2040 we ate only processed food.
2. The authorities predict that by 2070,lots of big cities became uninhabitated due to air pollution.
3. By the year 2100 many people live on the moon