Пре­об­ра­зуй­те, если это не­об­хо­ди­мо, слово BUILD так, чтобы оно грам­ма­ти­че­ски со­от­вет­ство­ва­ло со­дер­жа­нию тек­ста.

Wilbur and Orville Wright read everything they could find about flying machines.

They began building their own airplane in 1900. They carefully made and tested every part of the airplane. Finally, the airplane _________________.