第1个回答 2011-03-25
the plain is flying，please get ready。
第2个回答 2011-03-25
The plane is to take off.
第3个回答 2011-03-28
The plane is going to take off soon.
第4个回答 2011-03-25
The plane is taking off right now.本回答被网友采纳
第5个回答 2011-03-26
the plane is taking off.