Marco Polo and the Silk Road
Oxford Bookworms Library is a readers series for secondary and adult learners, with seven reading levels from A1-C1. Including over 270 original and adapted texts graded and available with audio and in e-book formats, it ensures a comfortable read at every level.
Oxford Bookworms Library Factfiles
Cambridge English: Flyers; Cambridge English: Key (KET); IELTS 3.0 – 4.5; TOEIC 225 – 780; TOEFL 24 – 86;
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