Giải giúp em bài tập này với ----- Nội dung dịch tự động từ ảnh ----- Exercise 3: Add a sentence with the past perfect, using the notes. 1. They started working, and then the boss came in. (when) When the boss 2. I made an appointment, and then I when to see the doctor. (after) => I went 3. The last bus left before Tom got to the bus stop. (had) When Tom 4. The police arrived too late, so the robbers got away. (already) => Вy the time the police 5. When did you study at Viet Thanh High School? (have) =>How long... 6. People have used the Internet all over the world. =>The Internet.. 7. She last wrote to him two years ago. =>She hasn't. 8. If you don't study hard, you will get bad mark. =>Unless.. 9. We want to play game. =>We feel like 10. Mai took two aspirins, and then she felt a lot better. =>After.