Пре­об­ра­зуй­те, если это не­об­хо­ди­мо, слово NOT GET так, чтобы оно грам­ма­ти­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Everybody knows that with valenki you __________________ frozen even in Siberia.

Until the 18th century, valenki were handmade and produced only in Siberia and several Northern regions where manual labour was long and hard.