借楼放只狗。 考完失忆只有V第一题记得特清楚
句意是说小麦以前是最广泛种植的作物,现在被玉米取代了 根据initial modifier 排除后剩下三个选项
wheat, as the most widely ...(记不清了), is being replaced by maize
wheat is being replaced by maize as the most widely...
wheat is being replaced as the most widely... by maize