Take the final test in the book. Redo any module where you scored below 70%. Watch a children's TV show (like Peppa Pig or Sesame Street )—you will now understand 50% of it.
No textbook is perfect. Here is a balanced assessment. english for everyone course book level 1 beginner
Lessons are broken down into small units, allowing you to learn at your own pace. Take the final test in the book