According to the passage, we can avoid a worldwide water shortage in the future by

A:increasing rainfall. B:reusing water and utilizing sea-water. C:cutting down our consumption of water. D:reducing the number of factories producing steel.

A:produce B:utter C:speak D:mean

A:reach B:come C:arrive D:derive

A:make B:take C:bring D:go

A:not B:no C:any D:some