★实用句型：

Make sure (that)从句……——确保∕务必……

（注：该句型中，that从句的时态须为简单现在时或现在完成时，且不可加任何助动词should、must等。）

★实战演练：

I'll walk you home,just to make sure no one bothers you.

我陪你走回家，就为确保没人骚扰你。

Make sure you mail the letter,Tom.

汤姆，务必要把这封信寄出去。

Make sure you have written your name on the exam paper before handing it in.

你务必要把名字写在考卷上，再交考卷。