Structuring a presentation

I've divided my presentation ____________________ three parts . ____________________ , I'll give you the ____________________ . ____________________ , I'll discuss the media plan . ____________________ , I'll talk you ____________________ the storyboard .

Just to give you a specific example , ____________________ ____________________ ____________________ ____________________ the next slide , we can ____________________ ____________________ the chart that the age group is 18 to 25 .

I'd be ____________________ if you could ____________________ any ____________________ to the ____________________ .

If there's ____________________ you're not ____________________ about , feel ____________________ to ____________________ me and ____________________ any questions .

Right , ____________________ ____________________ I ____________________ to ____________________ about the target markets . ____________________ now ____________________ ____________________ to the final part , and the media we plan to use .

So , ____________________ ____________________ ____________________ , before we go to the storyboard , ____________________ ____________________ ____________________ again are . . .

The purpose of the missing expressions is to : introduce a ____________________ , change ____________________ , or refer to ____________________ ?