选择being built 表示现在正在被建.而building是现在分词的主动式做定语时表示和被修饰词之间的主动关系如 The workers building the roads are from the South.
而本句的被修饰词是subway地铁和修建军之间是被动的.所以用现在分词的被动式being built.
选择being built 表示现在正在被建.而building是现在分词的主动式做定语时表示和被修饰词之间的主动关系如 The workers building the roads are from the South.
而本句的被修饰词是subway地铁和修建军之间是被动的.所以用现在分词的被动式being built.