Definitions of music can (4) ______ dramatically over a short time, as they have across the world during the 20th (5) ______Đoạn văn30/30Definitions of music can (4) ______ dramatically over a short time, as they have across the world during the 20th (5) ______year month century decadeGiải thíchĐáp án C Giải thích: the 20th century: thế kỉ 20