例句：

　　The present perfect is covered in Unit 8.

　　現(xiàn)在完成時在第8單元講解。

　　Guy wrenched his mind back to the present.

　　蓋伊的思緒猛地回到現(xiàn)在。

　　What can I get him for a birthday present?

　　我給他送點什么生日禮物呢？

　　What's the outline of the presentation?

　　演講的大綱是什么？

　　How do you structure your presentation?

　　你是如何組織你的演講的呢？

　　You can choose the format of your presentation.

　　你可以選擇你演講的形式。