We are going to have a 还有,下面的扩句填什么好?

问题描述:

We are going to have a 还有,下面的扩句填什么好?
We are going to have a Picnic.
We are going to have a Picnic_
We are going to have a Picnic__

我们要去野餐.
We are going to have a Picnic tomorrow.
We are going to have a Picnic next day.