对划线部分提问!The sailfish can swim 109km per hour.（109km per hour是划线部分）
网友回答
How fast can the sailfish swim.
我是英语老师,
======以下答案可供参考======
供参考答案1:
at what speed can the sailfish swim?
供参考答案2:
How fast can the sailfish swim.
供参考答案3:
How fast can the sailfish swim?
供参考答案4:
How fast can the sailfish swim？
因为划线部分是鱼的速度，所以要提问鱼的速度是多少。