施工队在山中挖掘了一条隧道。

The construction team ___dug ___a ___tunnel through the mountain.

狗正在挖一个洞来藏它的骨头。

The dog was ___digging ___a ___hole to hide its bone in.

他感到非常尴尬，想挖个洞消失。

He felt so embarrassed that he wanted to ___dig ___a ___hole and disappear.