have the right、suppose、surprise、opportunity、look forward to

1. I have the right to know. 我有权知道。

2. I suppose you dance much． 我想你常常跳舞吧。

3. I have a surprise for you． 我有一个意想不到的东西给你看。

4. Opportunity knocks but once． 机不可失，时不再来。

5. We look forward to your visit． 期待您的光临。