nếu câu nào bạn không hiểu có thể hỏi mình
1. if i knew the answer, i could tell you
2. if he did his homework, he wouldn't be punished
3. if it snows heavily, the meeting can be cancelled
4. the english grammar has been explained
5. the accident was caused by some drunk drivers
6. their parents will be visited next month
7. this house and these cars are going to be painted by the greens for christmas
8. the pollution problems have been discused since last week
9. our teeth should be cleaned twice a day
10. her report had been reported by soon
11. a special dinner is going to be made by sam tonight
12. the work wil be finished by 5pm
13. the instruction for medical use ought to be read carefully
14. this flower is watered by my father everyday
15. this train ticket was ordered by tim for his mom
16. if our parents didn't live so far away, we would visit them very often
17. if i knew enough about the machine, i could mend it myself
18. if peter didn't ignore mary, she wouldn't angry at him
19. if luis were't smart, he could find ...
20. the hotel should have been finished by the time...
21. the history of... community has to be written one day
22. if he had prepared for the interview, he could have got the job