Cho các oxit sau: MgO; N2O; BaO; ZnO; FeO; Fe3O4; K2O; N2O5; CO2; Al2O3. a) Gọi tên các oxit trên. b) Oxit nào tác dụng được với dung dịch axit HCl? Viết phương trình hóa học các phản ứng xảy ra.

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. VOCABULARY – GRAMMAR – LANGUAGE FUNCTIONS I. Choose the correct option (A, B, C or D) to complete each of the following sentence (10 points). 1. Without your help, I years ago. A. will give up B. give up C. gave up D. would have given up 2. Her being born in a poor family her from having proper schooling. A. prevents B. protects C. disables D. helps 3. The will was found three days after his _ . A. die B. died C. death D. dead 4. Your son’s behavior is in the whole school. A. bad B. the worst C. worse D. badly 5. The young generation likes using mobile phones, the devices _ _ help them to communicate with their friends quickly. A. who B. that C. what D. they 6. He lost control of the car and drove _ the river. A. in B. on C. over D. out of 7. The beauty of Ha Long Bay the tourists in the summer carnival last year. A. impress B. impressing C. impression D. impressed 8. The first hamburgers were sold in Connecticut in 1895 by an American chef Louis Lassen. A. was called B. has been called C. is called D. called 9. The teacher suggests something for the poor in our neighborhood. A. us to do B. us should do C. we should do D. we doing 10. Math, Literature and English are _ subjects in high schools. A. adding B. optional C. compulsory D. religious 11. I _ about him when suddenly he came in. A. was talking B. talked C. am talking D. have talked 12. Bill asked where _ from. A. do I come B. did I come C. I come D. I came 13. Jane said that you had read the book three times. – Yes, I found it very . A. amused B. amusing C. amuse D. amusingly 14. I’d rather to the party with my parents because there was nothing interesting there. A. not be invited B. not have been invited C. hadn’t been invited D. haven’t been invited 15. I prefer playing soccer on TV. A. to watching B. than watching C. to watch D. than watch 16. Hoa: It’s very nice of you to meet me here. - Lan: _. A. It’s a pleasure B. You’re welcom C. Certainly D. No problem 17. Ba: Shall I warm the milk for you? - Nhung: . A. Yes, you shall B. No, you shan’t C. No, please D. Yes, please 18. Mom: Will you empty the basket for me, please? - Son: . A. Thanks, Mom B. Yes, please C. Yes, certainly D. Yes, you will 19. Peter: Oh, I’m sorry. - Jimmy: _ . A. Great B. That’s all right C. It’s nice of you D. Thank you 20. Tom: Will you have some more cakes? - Marry: . A. No, thank you. I’m full B. Yes, let’s