build|building|builds|built

我哥哥想成为一名建筑师。

My brother wants to ___build houses when he grows up.

他们正在河边建造新房子。

They're ___building new houses by the river.

这些旧房子是用石头建造的。

These old houses are ___built of stone.

这座旧图书馆建于1920年。

The old library was ___built in 1920.

棒球运动培养团队精神。

Baseball ___builds team spirit.