We usually （have a big dinner and chat with each other happily） on that day.（对括号部分提问）
问题描述：
We usually （have a big dinner and chat with each other happily） on that day.（对括号部分提问）
答
What do we usually do ?
答
what do you usually do on that day？
答
What do you usually do on that day?要用助动词do的.