Do not keep the PDF open while you work. Keep it in a separate folder. Finish an entire section (e.g., Reading Passage 1). Then open the PDF. Mark wrong answers in red. Do not erase your originals.
The course is structured to support self-study and classroom learning through various components: expert ielts 75 coursebook answer key pdf portable
Remember: Invest in the official Teacher’s Book or digital access through Pearson. The $20–$40 you spend is trivial compared to the $500+ you would waste on a failed exam or the visa rejection that could follow. Do not keep the PDF open while you work