如下When do you often visit your grandparents?你经常什么时候看望你爷爷奶奶？若有疑问及时追问，满意敬请采纳，O(∩_∩)O谢谢~~
When do you usually visit your grandparents? 请注意: 提问时要把 often 应改为 usually。
When do you often visit your grandparents?
