请问: Luckily,we'd brought a road map without ____ we would have lost our way 答案:which

问题描述:

请问: Luckily,we'd brought a road map without ____ we would have lost our way 答案:which
为什么是定语从句,不是同位语?谢谢~

同位语从句必须有引导词the road map,而这个句填的的词作without 宾语,所以是宾语从句,而不是同位语从句谢谢您,那连接词是不是应该用that ?不能用that,因为without 是介词,它后面只能用which 不能用 that