Please be 什么 when you cross the road.

Please be 什么 when you cross the road. 单词拼写：when you cross the road ,please be c() Please be careful when you go____the road.(cross) You should be careful when you cross the m____ road . ( ) when you cross the road. ( )when you cross the road. Be careful when you walk cross the road改错 Paul,______（be） careful when you cross the road. be careful when you go --------(cross) the road When you cross the road,be careful of ______. be carefully 和 be careful怎么用?When you cross the road,you mus ( )carefui when you cross the road.A Be do B Do you be C Do