you must be careful when you ( )the street
you must be careful when you ( )the street
when crossing street,you must be careful
You must be careful when crossing the street.改为祈使句
Be careful when you c_______ the street
you must be careful when you cross the street中可以用if替代when吗
You must be careful when you cross the street.改为祈使句
you must be careful when you cross the street.(同义句)
while___(cross)the street,you must be careful
Be careful when you are crossing the street.
Be careful when you walk ____ the street
.Be careful when you come____the street,because the traffic
连词成句:cross,be,the,when,careful,you,street