Make it about something you are interested in and something that the audience will be interested in too. If you seem interested in what you are presenting there is more chance that the audience will enjoy it , but if you seem uncertain or uninterested theaudience will probably feel the same
If it is the subject English I would suggest a book or poem may be your topic. When I say book I mean that for example a childrens book could be the subject. It could be 'the occurance of gender bias in ##### (title of book) or something of that type. A poem that you like...or hate! It is a good idea to think outside the box a bit and do something different.