This is a deck that I made with my primary focus being the Chittagong university business unit. Now that the exam is over and I've already got admitted in it, I figured I'd post it online for other people to use. I don't know if the science students can use it or not (as I don't know their English syllabus) but I can confidently say if you are primarily studying for a business unit of any public universities then yeah you can use it.
[Note:- Some stuffs may repeat like some grammar rule or vocabulary might appear more than once as I didn't really have the time to correct the stuffs that I wrote more than once and yeah I guess that the only problem with this deck]