---How do you look at the issue? ---My point is that our government _______ make the public aware of the seriousness of water shortage.

Hard work and lack of sleep have _____ her beauty and youth in recent years.

Whether enough blood is donated could be a(an) ________ of life and death for the accident victims.

 New Zealand, in the south Pacific , ______ two large islands plus other smaller islands .

Some solid evidence proves that water really exists on Mars, but unfortunately, there is still no             of life.