对划线部分提问!The sailfish can swim 109km per hour.（109km per hour是划线部分）
问题描述：
对划线部分提问!
The sailfish can swim 109km per hour.（109km per hour是划线部分）
答
How fast can the sailfish swim.
答
How fast can the sailfish swim?
答
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。
答
at what speed can the sailfish swim?
答
How fast can the sailfish swim.
我是英语老师,