问题
＿＿when we passed by its nest.
A:Up into the blue sky did the bird fly
B:Up into the blue sky the bird flew
C:Up into the blue sky flew the bird
D:Flew up into the blue sky the bird
B:Up into the blue sky the bird flew
C:Up into the blue sky flew the bird
D:Flew up into the blue sky the bird
正确答案是：
