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This review is from: Cambridge IELTS 8 Self-study Pack (Student's Book with Answers and Audio CDs (2)): Official Examination Papers from University of Cambridge ESOL Examinations (IELTS Practice Tests) (Paperback)
I think it is a good tool to improve the skills
I recommend it to prepare the IELTS exam or whatever.
I don't like to write this information, I this it should be optional.