No wonder that you are scolded;you were out enjoying yourself when you_______.(ought)
问题描述：
No wonder that you are scolded;you were out enjoying yourself when you_______.(ought)
难怪你挨了骂,你本该学习时却出去玩了.
答
ought to have studied
ought to是情态动词,“应该”的意思.表示“（过去）本应该做某事” 用ought to have done或should have done.