Ai giải giúp mình với

Câu 1: ( 3,0 điểm )

a. Xác định A, B, M, D, E, F, G, H, I, K, L và hoàn thành các phương trình hoá học sau:

1. FeS2 + O2 -> A + B

2. A + O2 -> M

3. M + D -> axit E

4. E + Cu -> F + A + D

5. A + D -> axit G

6. G + KOH -> H + D

7. H + Cu(NO3)2 -> I + K

8. I + E -> F + A + D

9. A + Cl2 + D -> E + L

b. Hòa tan một lượng oxit của kim loại R vào dung dịch H2SO4 4,9% ( vừa đủ ) thì thu được một dung dịch muối có nồng độ 5,87%. Xác định CTPT của oxit kim loạ

His children don’t have a good relationship with one another.          ( get)

He is carving this flower out of the piece of wood.                             (carved)

His business is going badly . he will stop doing it soon ( down )

VIII. Complete the sentences with the correct form of the words in brackets.
1. Some people think that health is _____________ than money. (important)
2. The pollution in our city is much  _____________ than it used to be. (bad)
3. My new teacher explained the lessons _____________ than my old teacher. (clear)
4. He doesn’t play volleyball as _____________ as his brother. (good)
5. Get rid of the sorrow! You will do it _____________ next time. (good)
6. Communication is a lot _____________ than it was 50 years ago. (easy)
7. People in rural areas wear _____________ than those in cities. (simple) 
8. Robert arrived at the meeting _____________ than Francis. (late)
9. These trousers are too wide. Do you have any that are _____________? (narrow)
10. My mother always gets up _____________ than everybody else in the house. (early)
11. Rene speaks _____________ than the other ESL students in the class. (fluent)
12. Can’t you think of anything _____________ to say? (intelligent)
13. I think his new book is much _____________ than his last one. (boring)
14. Max finished the homework _____________ than anyone else in the class. (fast)
15. He doesn’t look as  _____________ as he used to. (happy)
IX. Write the correct form or tense of the verbs in brackets.
1. We ___________(play) football this afternoon. Do you want to play too?
2. Could you meet me at the airport tomorrow? My flight___________(arrive) at six.
3. Last summer, my friends and I ___________(spend) our holiday on a farm.
4. Nick ___________(not ride) a buffalo drawn cart before.
5. The cattle ___________(graze) on the green pastures right now.
6. Millions of Mongolians ___________(be) semi-nomadic herders for thousands of years.
7. My family ___________(live) in a small town for ten years before moving to Boston.
8. Country life ___________(not excite) me at all. It’s so boring.
9. Nick would like ___________(visit) the countryside at the harvest time.
10. I don’t mind ___________(drive) for 1.5 hours on the weekend to get out to the countryside.