"Który rozdział musimy czytać?"

Translation: Which chapter do we have to read?

[DankaEagle]

dlaczego tam musi bycz "do"?

[Jellei]

Ponieważ do (albo 'does' dla 3 osoby liczby pojedynczej) jest potrzebne przy tworzeniu pytań po angielsku w czasie Present Simple.

[henry2500]

Why czytać instead of przeczytać?

[Jellei]

Because... I don't really know. "Przeczytać", as 'to read it whole', makes more sense to me. Maybe it is said in the classroom and that means that we should be 'reading it literally now' and maybe we're not really supposed to finish the whole chapter?