Teds is a platform that provides great talks and speech . You can even download the video and transcript from the official website.
Here it is .
If you are having slow Internet connection at home, you may download the official mobile apps and you can download the videos during your Internet connection is good outside your house using public Wifi or etc.
You can also listen to BBC radio podcast by downloading them episode by episode.
Click here.
How to overcome your nervousness during your presentation at school
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