Составить 4 типа вопросов к предложению. the virtual world is a second life.

The virtual world is a second life.

Is The virtual world a second life?

Is The virtual world a second life or a real life?

The virtual world is a second life, isn't it?

Is the virtual world a second life?
The virtual world is the second life, isn't it?
What is the world a second life?
What is a second life?