填空题 When you walk___the road,you must be careful.

You must be careful when you cross the road.(改为祈使句） 填空 we must be careful when we___ the road when crossing street,you must be careful We must be careful when you go _____（cross） the road. You should be careful when you cross the m____ road . You must be careful to c_the road.It's dangerous. ___you go across the road,you must be careful you must be careful 一道语法填空When you are in England you must be very careful in th 完形填空 when you are in england ,you must be very careful in th 一道语法填空 When you are in England you must be very careful in t 首字母填空 1. You must be c______ when you cross the road. 2.You