📘 Official book: ISBN 978-1316629758 (with answers)
Many free PDFs online have problems:
While advanced learners focus on academic or professional collocations, the Elementary level (CEFR A2–B1) targets survival English: daily routines, travel, work, and hobbies. This book contains roughly 1,500 collocations broken into manageable, two-page units. 📘 Official book: ISBN 978-1316629758 (with answers) Many
