题目

下图中的箭头“→←”表示四个大洲在第二次世界大战前（简写为“前”）后（简写为“后”）人口的迁入或迁出，正确的是(   ) 答案：AI think he sings ________ and his songs are very ________．A.good, wellB.well, goodC.good, goodD.well, well