Here is how the English assignment should be done. Yes you will be split into different classes and yes the assignment is pair work. 

Here is how it will work. Find a partner, both of you will read the material and prepare the presentation. However, the actual presentation will be done individually. So if you and your partner are in different classes, you will present the same presentation to your respective classes. 

Please feel free to ask my questions. 

Mr Khoo