you must be careful when you coss the road.改为祈使句

You must be careful when you cross the road.(改为祈使句） You must be careful when crossing the street.改为祈使句 You must be careful when you cross the street.改为祈使句 you must be careful改为祈使句 You must be careful with your handwriting(改为祈使句) you must be careful with your pornunciation.改为祈使句 We must be careful when you go _____（cross） the road. You should be careful when you cross the m____ road . ___you go across the road,you must be careful Be careful ------you ----the road 复合句改为简单句You must be careful when you are walking the dog.不能把 Be careful when you walk cross the road改错