工人们使用挖掘机在山里挖了一条隧道。

The workers used excavators to ___dig ___a ___tunnel through the mountain.

我的狗喜欢在后院挖个洞来埋它的玩具。

My dog loves to ___dig ___a ___hole in the backyard to bury his toys.

当我在大家面前意识到自己的错误时，我恨不得挖个地洞钻进去。

When I realized my mistake in front of everyone, I wanted to ___dig ___a ___hole and disappear.