英语填空 When you cross the road ,first look left and make sure it is safe,____ cross the road.

问题描述:

英语填空 When you cross the road ,first look left and make sure it is safe,____ cross the road.
all、both、bring、first、leave、live、then、twice、two里面选

When you cross the road ,first look left and make sure it is safe,(then) cross the road.
then然后,前句有first首先.