Meilleure réponse !
The funder of the environment organization " adopt a highway" talks to a texan class this morning. He explains  what his project consists of and asks the children whether they would agree to adopt a highway. If they join the organization , they commit themselves to clean a 2 miles portion of a highway for 2 years. It is an act of citizenship and they finally all agree to join the program. A small discussion starts about other causes of pollution on the roads, but the teacher thanks the funder and proproses to continue the debate after his leaving.