Don't open the door until the bus stops.改为同义句Open the door ______the bus______怎么填
问题描述：
Don't open the door until the bus stops.改为同义句Open the door ______the bus______怎么填
答
Don't open the door until the bus stops
=Open the door after _the bus stops
=Open the door unless_the bus stops
not until=unless
有不会的可以再问我
答
after.stops