when you ____ _____ (穿过）the rpad ,you must look left and rig

when you ____ _____ (穿过）the rpad ,you must look left and rig You must look left and right when you go ( ) the road When you ____(过)a street,you must look right ,look left.请问是用 When you cross the street,you must look to _____. 同义句转换 You must look to the right and the left You must look First you must ____ ____(穿过）the bridge. you must look the right first and then the left 可以改为you must ：1.We must look left and right when we ____(across) the road you must look to the _________first and then the left A.left Before you cross the street,you must look ___ the left and r Before you c------ the road, you must look left and right Before you c____ the road,you must look left and right