The Audio CD Pack contains a copy of the book along with an audio CD with a recording of the complete text in both British and American English. Listen and read to discover all about explorers and exploring... Why is exploring important? Where did the first explorers go?Read and discover more about the world ¿ in English! This level is aimed at confident, high-level, young learners of English and contains 900 headwords.Read and discover all about explorers and exploring. Why is exploring important? Where did the first explorers go?