单选题
The old city of Beijing was surrounded bya______wall with fortified gates on four sides.
【正确答案】
A
【答案解析】解析：massive a.大而重的，大块的(如：Several strong men were needed to open and close the massive gates to the castle．)。pompous a.华丽的，爱浮夸的，自负的。spacious a.宽广的，宽敞的。vast a.巨大的，广阔的。