6. I (had) turned off the lights before I left the room.

7. As soon as the other passengers get on the bus soon, we'll leave.

8. Whenever Susan feels nervous, she chews her nails.

9. The frying pan caught on fire while I was making dinner.

10. I wont return my book to the library until I have finished my research project.

ok chị

1. The film was so boring that she decided to go home early.

2. It is such a difficult question that all the students can't answer it.

3. Mr. Brown wants to use solar energy but he does not have enough money to buy necessary equipment.

4. By the time Shakespeare died in 1616, he had written more than 37 plays.

5. Since Douglas fell off his bicycle last week, he has had to use crutches to walk.

là lan truyền thông tin cho mọi người