dogs telll the blind person when it is __________ to cross t
dogs telll the blind person when it is __________ to cross t
Dog tell the blind person when it is ---- to cross the road.
定语从句单选题they are the dogs ____ to help the blind cross the st
Guide dogs make ______ for blind people to cross the street
It's good helping blind people to cross the road.
no person is allowed to cross the street when the red light
Dogs help the blind people cross the road____(safe).
cross和across有什么区别(When is the road is clear,it is safe to---
it's good to help blind people to cross the road .
It is( )for us to cross the street when the traffic light ar
It is ____for us to cross the street when the traffic lights
if you are sure that the road is c____,it is safe to cross t