... Student's Book ISB N-lO -S21-80S78-3 Student's Book ISBN-13 978-0-S21-80S79-7 Teacher'sBook ISBN-10 0-521-80579-1 Teacher'sBook ISBN-13 978-0-521-80580-3 Workbook ISBN -lO 0-521-80580-5 Workbook ... Sharp for permission to reproduce their origi nal course book concept in ObjectivePET and in all other Objective examination course books The auth ors would like to thank Sue Ashcroft and Niki ... Ward pp 23,25; Jonathan Williams pp 74, 75, 138(b); Sam Thompson pp 97,173 Ma p of ObjectivePET Student's Book TOPIC GRAMMAR Unit' 10-13 Present simple/to be + freque ncy adverbs FU NCTIONS...