It is possible for them to ask about form via storytelling more speciifcally. As you know I don't personally do 1984 but you should try to make sure most of your techniques are things prevalent throughout the text ie metaphors, characterisation, imagery etc. since that novel tends to use quite a lot of those. Its always good to have at least one mention of form in each paragraph like, for instance I'm doing Shakespeare so I mention dramatic irony, soliloquy, monologues, tension, comedy, humour, etc. If you want I can read your essay for ya and see where you can integrate form or if your integration of form is good.