: Because units follow a consistent, step-by-step structure, it is a viable option for learners who miss classes or prefer independent study. Critical Reception
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However, as with any textbook, there are also some potential limitations to consider. Some learners may find the pace of the book too quick, or the activities too challenging, particularly if they are not adequately supported by the teacher or other learning resources. Additionally, the PDF format of the book may not be suitable for all learners, particularly those who prefer a more traditional, paper-based approach to learning. new total english upper intermediate students book pdf