Rewrite the sentences without changing the meaning
1.It took me one hour to finish my work. (spent)
2. Someone stole my bag. (passive voice)
3. She asked me :" What did you do yesterday?". ( using reported speech)
4. Although it rained heavily, they went out. (Despite)
5. I haven't met her for 2 years. (last)
6. This is the first time I have watched this film. (never)
7. Despite being poor, she is happy. (though)
8. She had worked in this factory before she retired. (after)
9. They put off all the matches because of rain. (because)
10. She said: "I will visit my grandparents tomorrow." (using reported speech)
11. She said: "I am sorry. I am late."( using reported speech)
12. They said: "would you like to have dinner with us?"( using reported speech)
13. My mother said: "don't forget to bring your umbrella."( using reported speech)
14. She lived in Hanoi then moved to Ho Chi Minh city. (past perfect)
15. She said: "If I were you, I would go to the movie with him".( using reported speech)
16. I haven't seen him for 2 weeks. (since)
17. He didn't revise the lesson, so he couldn't answer these questions. (If)
18. I had my father repair my bike. (passive voice)
19. He doesn't smoke any more. (used)
20. Hurry up or you will be late for school. (If)

Giải pt:

1. 2(x - 1)^2=32

2. (x +1)(81x^2 - 9)= 0

Chỉ từ các chất sau: KMnO4, Zn, HCl, Na, S hãy viết các PTHH điều chế NaOH và H2SO3