1. If I were you, I would take that English course.
3. Even though Mr.Thanh is old, he runs 5 kilometers every morning.
4. Not until the bell rang did he finish his work.
5. He hates being asked about his past.
6. If it hadn't been for Tom's help, Bill coudn't have finished the work.
8. They said that it was time they had gone to bed.
9. The bank manager was made hand over the money by the robbers.
10. The last time she went to HCM City was 3 years ago.
11. After cleaning the floor, I went to bed.
13. She asked John if he would like to dance with her.
15. I wasn't introduced to newcomers in the festival.
17. There is no point in persuading her to join in that activity.