Hi sokkuniza!
You are a good speaker

. When teacher ask you to do prensentation,you do not speak a lots.I think you have to do something
+The very first thing, You have to be confident,and you try to find out the enough information about your topic.It is better to search it by this website
www.google.com + The second steps you have to understand that topic clear,then try performce it by speaking it out what you can remember about that topic,then discuss it with your friend or tell what you kwon about it. try to speak to your classmate before do it in front of whitebaord. This way can make you close with them and you are getting more confident.
