11. In jazz music, a riff is a simple melodic figure, _________ and repeated several times.
(A) usually one or two measures lasted
(B) lasted one measure or two usually
(C) is lasting one or two measures usually
(D) usually lasting one or two measures
答案是d 可是a為什麼不對ㄋ?
很抱歉 我不知道我的標題這樣打對不對
因為我找不到那篇訊息∼
如果有誤 我再修改 謝謝!