1) Общий:
Are there three states of matter? (Yes)
Does a liquid have a definite size? (Yes)
2) Специальный:
What is water in the solid state? (Ice)
What is water in the gas state? (Steam)
3) С хвостиком:
We know water in all three states, don't we?
A liquid doesn't keep its own shape, does it?
4) Альтернативный:
There are three states of matter or four? (Three)
We know water in all three states or you know water in all three states?
5) К подлежащему:
Who knows water in all three states? (We)
What has no definite size or shape? (Gas)