Will you be going back home for the Spring Festival? (来源：EnglishCN英语博客基地)
False: 是的，我回去。Of course! (这一句是错的)
True: 当然。Sure. / Certainly.(这种说法是正确的)
以英语为母语的人使用of course的频率要比中国的学生低得多，只有在回答一些众所周知的问题时才说of course。因为of course后面隐含的一句话是“当然我知道啦!难道我是一个傻瓜吗?”因此，of course带有挑衅的意味。在交谈时，用sure或certainly效果会好得多。同时，of course not也具挑衅的意味。正常情况下语气温和的说法是certainly not。
False:I feel very painful in my right hand.
True: My right hand is very painful.Or "My right hand hurts(aches)."
False: He looked at her and felt surprised.
True: He looked at her in surprise.
False: I have read your novels but I didn't think you could be so young.
True: After having read your novel,I expected you would be older.
False:Her red face made me see through her mind.
True: Her red face told me what she was thinking.
False:The sight of these pictures made me remember my own childhood.
True: Seeing these pictures reminded me of my own childhood.
False: Don't pay attention to her.
True: Leave her alone.
False: I get a lot of knowledge in the university.
True: I learned a lot in universit.