... for Unit 11, lesson 5, B4 12 3 4 5What was wrongwith you ? 12 3 4I had aheadache. 12 3 4 5I hope youwillbe ok.6 Period 70 Unit 11 : Keep fit, stay healthy Lesson 4 : B2,3I. ... (n):1. semester (n):7. stomachache (n):Häc kקau bông Period 70 Unit 11 : Keep fit, stay healthy Lesson 4 : B2,3II. Listening1. B2Ha: Were you ever absent from school last semester...