Be careful,or a car may hit you.

题目

Be careful,or a car may hit you.
同义句改写
（1）Be careful ,or a car may hit you.
___ you ___ careful ,a car may hit you.

答案

【If 】you 【 aren't 】careful,a car may hit you.
不明白的再问哟,请及时采纳,多谢!