when crossing the street,the lady ------to the ground
when crossing the street,the lady ------to the ground
when crossing the stree ,the lady __to the ground .
_be careful when crossing the street.
The child was crossing the street when he suddenly-----[fall
when的省略用法 when crossing the street,it is nrcessary to be car
Be careful when you are crossing the street.
You must be careful when crossing the street.改为祈使句
Be careful when ( you are ) crossing the street.
he was knocked down(when crossing the street).
根据首字母填空:Be c___ to look both ways when crossing the street.
I see you crossing the street
he was crossing the street when a car ___ at that momnent