初中完型填空
Youcannotsee(1)feelitwhenitisapartoftheair.Thewaterintheseas,riversandlakesisliquid(液体).Thewaterintheairisnotaliquid(2)agas.
Cloudsaremadeofwater.Theymaybemadeofverysmalldropsofwater.water,youhave(3),isveryuseful
1.A.andB.or
2.A.butB.andC.also
3.A.foundb.foundoutC.lookedforD.founded
请每题说明一下为什么.还有翻译一下最后句.