For English I did a lot of research on the texts (not just what teachers say to read it twice or whatever) like looking at ideas and analysing it in a way that flowed well with good language and specific quotes and techniques, wasn't generic (everyone tends to use the same type of arguments for example like in mod A that texts show the value of the context, but you have to try and show it in a way that addresses different parts of the rubric like the importance of techniques specific to a text type i.e. camera and lighting stuff for movies and for a play like asides and stuff, making direct distinctions between like the type of language used. for instance in Shakespeare King Richard he uses christian imagery and demons and stuff, while Pacino in looking for Richard looks at the same theme of manipulation and power but addresses it through the characters becoming politicians so he can relate the text to his specific audience which is American people, while in Shakespeare's its English 16th century. So pretty much by paying attention to these kinds of things, no matter what the question is on the exam day you should be able to adapt ur essay to the question because you have based on essay on the rubric and the ideas that link to that rather than just random themes that might link, because the question most of the time is just a straight sentence from the rubric with maybe a quote from somewhere else
For short answers, honestly didn't do that much study apart from memorising techniques and knowing key phrases from the discovery rubric, because if you have already like written essays from scratch using quotes and techniques for other sections, you already know how to analyse a text and just have to do that on a smaller scale with the texts they give u.
For biology, I didn't do the subject but I did do the other two sciences and I found that making your own notes using like textbooks and other band 6 students notes, based on having a dot point as a heading and then writing information beneath worked well. Past papers are pretty important too as you see the type of detail you need in answers to get good marks