Phân loại và gọi tên các hợp chất sau: CaO, H2SO4, Fe(OH)3, FeSO4, Fe2(SO4)3, CaSO4, CaCO3, MgCO3, KOH, MnO2, CuCl2, H3PO4, Mg(OH)2, SO2, N2O5, P2O5, NO2, MgO, Fe2O3, CaHPO4, KH2PO4. 

 Cho các oxit sau: cacbon oxit, nitơ oxit, lưu huỳnh trioxit, đồng (II) oxit, nhôm oxit, kali 
oxit, canxi oxit, điphotpho pentaoxit. Oxit nào tác dụng được với nước? Viết phương trình phản ứng xảy ra và gọi tên sản phẩm tạo thành.

các chất cần thiết trong thức ăn sau khi được biến đổi thành chất dinh dưỡng sẽ được hấp thu và vận chuyển trong cơ thể bằng các con đường nào? Vai trò của gan trong quá trình này là gì?

các chất cần thiết trong thức ăn sau khi được biến đổi thành chất dinh dưỡng sẽ được hấp thu và vận chuyển trong cơ thể bằng các con đường nào? Vai trò của gan trong quá trình này là gì?

Choose the word whose underlined part is pronounced differently from the others :

1.         A. recycle                        B. sky                                      C. bicycle                                D. dry

2.         A. feeling                         B. plastic                                 C. give                                     D. right

3.         A. most                            B. cost                                     C. compost                             D. respond

4.         A. stirred                         B. delighted                            C. trained                                D. shared

5.         A. reuse                           B. reduce                                 C. refill                                    D. represent

6.         A. uniform                       B. product                               C. reuse                                   D. united

7.         A. magically                    B. glassware                            C. fabric                                  D. metal

8.         A. wisdom                       B. memory                              C. compost                              D. position

9.         A. demonstrate                B. deposit                                C. spell                                    D. memory

10.     A. fertilizer                      B. injure                                  C. refill                                    D. participation

11. Miss White is one of the __________________ from “Friends of the Earth”. (represent)

12. Bowls, vases, jars and glasses are sold in the __________________ store at the corner. (glass)

13. Dead leaves fall to the ground and __________________ very quickly in wet weather. (compose)

14. The teacher gave the children a very detailed __________________ of the recycling plan. (explain)

15. Use a __________________ spoon to mash the paper. (wood)

16. One ton of __________________ saves __________________ ten trees. (recycle / approximate) 

17. Japan was rapidly __________________ in the late 19th century. (industry)

18. Compost is one of the most wonderful natural __________________. (fertility) 

19. He said that his jokes were __________________. (intend)

20. ______________ are very ___________ about the rising in global temperature. (environment / concern)

11. Miss White is one of the __________________ from “Friends of the Earth”. (represent)

12. Bowls, vases, jars and glasses are sold in the __________________ store at the corner. (glass)

13. Dead leaves fall to the ground and __________________ very quickly in wet weather. (compose)

14. The teacher gave the children a very detailed __________________ of the recycling plan. (explain)

15. Use a __________________ spoon to mash the paper. (wood)

16. One ton of __________________ saves __________________ ten trees. (recycle / approximate) 

17. Japan was rapidly __________________ in the late 19th century. (industry)

18. Compost is one of the most wonderful natural __________________. (fertility) 

19. He said that his jokes were __________________. (intend)

20. ______________ are very ___________ about the rising in global temperature. (environment / concern)

1. There are some __________________ zones outside Ho Chi Minh City. (industry) 

2. Papers and cans are __________________ materials. (recycle) 

3. Reduce means not buying products which are __________________. (package)

4. The country’s main __________________ resources include forests, coal and oil. (nature)

5. It’s very __________________ to cross the avenue at rush hours. (danger)

6. Making soil __________________ is the farmer’s work. (fertilize)

7. Despite what is printed on the label, this product is not __________________ friendly. (environment)

8. Air is a __________________ of gases. (mix)

9. Attractive __________________ can help to sell __________________. (package / produce)

10. Waste paper can be __________________ after being __________________. (use / recycling)

1.         Ann (A) got mark 10 (B) in Math so she (C) felt very (D) happily.

2.         I (A) expect (B) to meet by my uncle when I (C) arrive (D) at the airport.

3.         I (A) myself don’t eat chili, but it’s (B) the most popular (C) spice in (D) a world.

4.         A lot of crop (A) can’t be (B) grew in the mountains because (C) it (D) gets to cold.

5.         (A) It’s very difficult (B) for students (C) to answer all of (D) the question in fifteen minutes.

6.         The house (A) painted more than (B) five years ago, so I’m (C) going to repaint (D) it.

7.         (A) As soon as Sylvia and Ronald (B) will arrive, the meeting (C) can (D) start.

8.         (A) Would you (B) like (C) coming (D) to my birthday party ?

9.         We (A) reached the (B) nearest village after (C) walk for (D) five hours.

10.     The telephone (A) was invented (B) with a (C) Scotsman, Alexander Graham Bell, (D) in 1876.

11.     (A) The air is (B) polluting by smoke (C) from (D) industrial factories.

12.     Waste paper (A) and old clothes (B) will collect (C) for our (D) mini-project.

8. We find it difficult to answer this question.

This question

We have

9. I was very delighted that I passed the entrance exam.

I was very delighted

10. No one has opened that box for the last hundred years.

That box

11. My parents sent me a lot of toys on my 1st birthday,

I was

12. These women used to wear long dresses.

Long

13. Teachers made their students work very hard in exam time.

Students

14. Children like walking in the rain.

(INTERESTED)

(ENJOY)

 (FOND)

15. I have never known that man before.

That man