For 2019 there will be one collection of tests for B1 Preliminary for Schools following the specifications of the revised 2020 exam. There are also two collections of tests for the current specifications of the exam, which will be available until the end of 2019. Each contains four complete official practice tests.
The new collection offers a Student’s Book without answers; Student’s Book with answers; and a Student’s Book with answers with audio for candidates preparing for the exam on their own.
The existing two collections offer Student’s Book without answers; Student’s Book with answers; Audio CD; and Self-Study Pack (Student’s Book with answers + Audio Cd). The Student's Book with answers with audio and the Self-study Pack contain a comprehensive key and recording scripts, so the material can be used either in class or by students preparing alone.
Informed by the Cambridge English Corpus