How to say in Czech: The window is closed.

English
The is
Czech
Okno je zavřené.
Why is the window closed?
Can I close the window?
The windows are closed.
Who closed the window?
The window is broken.
He jumped out of the window.
I broke the window.
Do not throw anything out of the window.
Who broke the window?
Who jumped out of the window?

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