irrigating

"After a long day of gardening, the worker washed his hands, but some ditches of dirt remained ingrained under his fingernails. "

"The building of the bridge will be completed in a couple of weeks."

"the farmer had lots of crops to sell at the market"

"The band played lively tunes on their bagpipes, filling the stadium with music. "

"We need to irrigate the land before we plant the crops."

"supply and demand"

"The new houses were built on what used to be valuable farmland. "

"I brush my teeth regularly to prevent them from turning yellow."

"Before dinner, I finished my homework. "

"By the action of electricity, the water was resolved into its two parts, oxygen and hydrogen."

"The garden had a couple of trees, and a cluster of colourful plants around the border."

"The infection spread quickly through the classroom after one student got sick. "