The birds couidn't fly in the sky.（改为同义句）The birds---fly in the sky.中间三个横线
问题描述：
The birds couidn't fly in the sky.（改为同义句）The birds---fly in the sky.中间三个横线
答
The birds couidn't fly in the sky.（改为同义句）The birds---fly in the sky.中间三个横线