语法与词汇 20.The rapid outward expansion of cities in recent years has swallowed many villages like this one, which 20 years ago was a (n) ______of paddy fields.
【正确答案】 B
【答案解析】本题考查名词辨析。space意为“空间，空地方”；land意为“(尤指耕作或建筑用途的)土地”，概念上与fields重复，故排除；expanse意为“宽广，辽阔”，an expanse of意为“一大片”，符合语义，故[B]项为答案。extent意为“大小，面积，范围”。