How to say in Czech: What school grade are you in?

English
What school grade are you in?
Czech
Do které třídy chodíš?
You are young.
You used to walk to school.
He walks to school.
I don’t want to go to school.
You didn’t write that.
What is your address?
Where are you going?
You live there.
What are you allergic to?
What are you cooking?

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