Let's travel by air,shall we?(改为同义句）

Let's travel by air,shall we?(改为同义句）
Let's travel by air,shall we?(改为同义句）

Let's travel by air,shall we?(改为同义句）
有多种改法：
Shall we travel by air?
Why not travel by air?
What about travelling by air?

Let us take a aeroplane there,will you?