restaurant owners have to know how to (make food)对括号部分提问怎么是what do restaurant owners have to do?73,为什么?
问题描述：
restaurant owners have to know how to (make food)对括号部分提问怎么是what do restaurant owners have to do?
73,为什么?
答
餐馆老板必须知道对(做食物)对括号部分提问怎么是什么做餐馆老板怎么必须做？
答
What do restaurant owners have to know how to do?
答
What do restaurant owners need to know
what you said is also correct!
答
what do restaurant ownes have to know