【单选题】In the past, the Park Service focused on making the big scenic parks more 【21】______ and comfortable for tourists. Roads were paved to allow 'windshield visitors' to experience the grandeur of nature ...
【单选题】In the past, the Park Service focused on making the big scenic parks more 【21】______ and comfortable for tourists. Roads were paved to allow 'windshield visitors' to experience the grandeur of nature ...