博物馆里正在展出许多老式飞机。

Many old aircraft are ___on ___display at the museum.

音乐博览会上展出了一些新乐器。

There were some new musical instruments ___on ___display at the music fair.

这位艺术家的最新画作正在美术馆展出。

The artist's latest paintings are ___on ___display in the gallery.