Miss Li often tells her students not to get off the bus until it________A.has stoppedB.stoppedC.will stopD.shall stop为什么不能选B呢?
问题描述：
Miss Li often tells her students not to get off the bus until it________
A.has stopped
B.stopped
C.will stop
D.shall stop
为什么不能选B呢?
答
额，不插一脚了，不过那位说的是对的，要注意时态哦
答
前后时态要一致,前面为tells,一般现在时,后面也要现在时,所以只能选A