4. complete the sentence.
My answers are with capital letter
This Iron Age village WAS DISCOVERED fifty years ago. Chysauster WAS INHABITED from 100 BC until the 3rd century. It IS VISITED by thousands of school children every year. It's an underground settlement like others that CAN BE FOUNDED in the UK and Ireland. The village WAS MADE UP OF stone-walled houses. Visitors ARE ASKED not to pull at the stones or walk in the protected areas.
All are correct except for: CAN BE FOUNDED
To complete the sentence, we need to choose the correct form of the verb "discover" to match the subject "This Iron Age village." The correct form is "was discovered" because the action of discovering the village happened in the past.
So, the complete sentence is: "This Iron Age village was discovered fifty years ago."