主页 学习资源 BUSINESS | 商务话题 Business Result Pre-Intermediate Unit 12 Unit 12 本节的教训 请注意：需注册登录查看以上内容。 Lesson 1 - Evaluating Performance Lesson 2 - Present Perfect II - with FOR and SINCE Lesson 3 - Describing Trends Pre-Intermediate Unit 12 Progress Test
