How to use "digging" in a sentence

They put the bag down and began digging

Down on the left a busy little digging-machine could be seen, sending out small clouds of green smoke and working its way round the pit, making it bigger and piling the earth up over the top

The Martians had taken away the digging-machine and apart from the fighting-machine on the far side of the pit and a building- machine that was busy out of my sight, the pit was empty

But I believed in him enough to work with him all that morning at his digging.

And just as I was beginning to face these things, the soldier stopped digging and looked at me.

Neither of us wanted to start digging again, and when he suggested a meal I was quite happy to agree.