Can you not delete my question?

Introduction to making a difference: it’s our world, too

Urban and rural antonyms synonyms neither

What task did the surveyors do? a. they studied the landscape to determine the most direct route for building a road. b. they designed treadmills that lifted blocks of stone to where they were needed. c. they dug trenches and filled them with sand, concrete, and large blocks to form a road.