My sister and I will go picnic if we are free next week.
I will go picnic with my sister if I am free next week.
I will go picnic with my sister if she is free next week.
I will go picnic with my sister if we are free next week.
My sister will go picnic with me if we are free next week.
以上都可以
来自【学习宝典】团队
有不明白的地方欢迎追问
如果认可我的回答
请点击下面的【选为满意回答】按钮
谢谢~