题目内容：

请问When than plane took off,this one has already landed in the airport后接Safe的什么形式

优质解答

When than plane took off,this one has already landed in the airport这句话首先有打错的应该是When that plane took off,this one has already landed in the airport意思是“当那架飞机起飞的时候,这架飞机已经...