连词后都可省主语吗?例以下
问题描述：
连词后都可省主语吗?例以下
正确：I didn't call my family until I got off the train
但下面这题,连词后少了主语 “I”
I didn't call my family until got off the train请问可以吗?
答
不可以的,连词主要连接从句的,从句不可以无主语.