The flowers will die ____you put them into a warm room.a、until b、unless c、if d、or

问题描述:

The flowers will die ____you put them into a warm room.a、until b、unless c、if d、or
为什么不选D ,和经典例句,不然就迟到了.填or 是一样的吗?hurry up or .

or在这指否则,不合句意~快点!否则就(迟到了)