Let's have a barbecue tomorrow 同义句转换Let's have a barbecue tomorrow.（同义句转换）_____ _____having a barbecue tomorrow?

Let's have a barbecue tomorrow 同义句转换Let's have a barbecue tomorrow.（同义句转换）_____ _____having a barbecue tomorrow?
Let's have a barbecue tomorrow 同义句转换
Let's have a barbecue tomorrow.（同义句转换）
_____ _____having a barbecue tomorrow?

Let's have a barbecue tomorrow 同义句转换Let's have a barbecue tomorrow.（同义句转换）_____ _____having a barbecue tomorrow?
What about/How about

提建议的常用固定结构 shall we do something ？
how about /what about doing something ？
所以答案是：how about 或者是 what about

what about