Have you made up your mind to go to the Summer Palace with us?  

你决定好了没有跟我们一起去颐和园？

Wang Fei：

You see, I haven't been there for three year sand I want to go very much. But I've already had and oppointment with my friend.  

你知道我已经三年没去了，特别想去，可是我跟朋友有约会。

Jim：

Can't you change it to the next Sunday?  

你不能改成下个星期天吗？

Wang Fei：

I'm afraid I can't. I can't break my word!  

恐怕不行，我不能不讲信用！