Twenty years ago this region produced twice as much coal as it does now. (halved) → The coal producedĐoạn văn78/85Twenty years ago this region produced twice as much coal as it does now. (halved) -> The coal produced _____________________________.Nhập câu trả lời ở đây0/3000 ký tựGiải thíchThe coal produced in this region has been halved in the 20 years.