Describe an important scientific discovery or invention that you consider to be very important. You should say: • how you learned about it • what it does • what it is most commonly used for today and explain why you think it is an important discovery or invention.

Hi ladies and gentlemen, welcome to my presentation. Today I will be talking about an important invention in my own opinion. It is a mobile phone. I know it through the media, especially when it becomes popular in Southeast Asia. I have also heard people around me using the mobile phones every day when I […]

Hi ladies and gentlemen, today I’m going to talk about an important invention in my own opinion. I think it’s a mobile phone. I know it’s very rare here, especially when it’s become popular in the Southeast. I also have people around me using the mobile phone everyday when I was a child. Gradually it’s […]