工人们正在挖掘地基来建造新大楼。

The workers are ___excavating the foundation for the new building.

工人们正在挖掘地面铺设新的水管。

The workers are ___excavating the ground to lay new water pipes.

考古学家们在遗址中挖掘出了一批古代陶器。

The archaeologists ___excavated a collection of ancient pottery at the site.