The second task in Reading and Use of English is a text with 8 gaps in it – but no options to choose from. The words needed for the gaps are usually relatively short: they are auxiliaries (do, have), pronouns (them, myself), prepositions (of, about) or linking words (but, still). The focus is rather on grammar than vocabulary.
The best way to strategy here is to become aware of what types of words get chosen and pay attention to all those little words in grammar structures. To practice this, you can use Quizlet, a website where people can make their own online flashcards or use online flashcards made by others. Here’s a selection. Just remember to switch the options so that you see the sentence first and not the gap!