When that plane took off, this one has already landed in the airport_safely_（safe）为什么答案给来是safety
问题描述：
When that plane took off, this one has already landed in the airport_safely_（safe）
为什么答案给来是safety
答
safely做副词修饰landed,表示安全着陆.
答案是错误的,我可以肯定