Lower-quality PDFs are just images of pages. The "Top" version uses Optical Character Recognition (OCR). This means you can press Ctrl+F and instantly find any word, verb tense, or idiom across 200+ pages.
To understand the hype, let’s look at the actual unit structure. The book typically contains 12 core units (6 for A1, 6 for A2): english hood a1 a2 students book pdf top
– Focuses on TV programs and future plans using "will" vs. "be going to". Key Features Lower-quality PDFs are just images of pages