① My presentation will help solve a problem that has puzzled people for years.。。
、 I‘m going to be speaking about something that is vitally important to all of us.
、 At the end of this presentation you will understand why this company has been so successful for so long.。。
④ I am going to be talking about a product that could double your profit margins.。。
、 the next ten minutes will change your attitude to sales and marketing.。。
、 Over the next ten minutes you are going to hear about something that will change the way your companies operate.。。
、 By the end of this presentation you will know all there is to know about.。。