B1 preliminary for schools适用于新版考试 Preliminary for schools preliminary for schools trainer Preliminary for schools trainer 新版B1 Preliminary for Schools 剑桥通用五级考试 B2 Preliminary for Schools 适用于2020新版考试 并列题名：Preliminary for schools trainer B1 preliminary for schools practice tests 并列题名：B1 preliminary for schools practice tests 剑桥通用五级考试 A2 Key for Schools 适用于新版考试