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a) \(4Cr+3O_2\rightarrow2Cr_2O_3\)
b) \(2Cu+O_2\rightarrow2CuO\)
c) \(2Ca+O_2\rightarrow2CaO\)
d) \(4Al+3O_2\rightarrow2Al_2O_3\)
Bài 5: Hoàn thành câu sau với “because (of)” ; “(al)though/even though /despite/ in spite of”.
1. __Although___________ he worked hard, he didn’t receive any praise.
2. He ate the chocolate cake ____although_________ he is on diet.
3. ____Despite_________ the high prices, my daughters insist on going to the movies every Saturday.
4. _______Although______ it was cold, I went aout.
5. ___Although__________ John didn’t study hard, he succeeded.
6. We took many picture ___despite__________ the cloudy sky.
7. _____Despite________ her poor memory, the old woman told interesting stories to the children.
8. She went home early ___because__________ she didn’t feel well.
9. I couldn’t get to sleep ____because of_________ the noise.
10. The students arrived late_____because of________the traffic jam.
1 How much money did you borrow him last week?
2 How much rice is there in your kitchen?
3 How much fruit will you buy tomorrow?
4 How much water is there in a swimming pool?
5 How many teaspoons of sugar do we need?
Bài 1. Khoanh tròn phương án đúng để hoàn thành các câu sau.
1with me to the s. If the weather is fine, we (goes/ will go) camping tomorrow.
2. My parents will give me a gift if I (will pass/ pass) the final exam.
3. If you are polite to others, they (will be/ are nice to you).
4. Unless James (studies/ will study) hard, he will fail the exam
.5. My parents won’t allow me to go out if I (don’t finish/ won’t finish) my homework.
6. If the cable TV (doesn’t/ won’t) work, we will rent a DVD.\
7. If you don’t want to stay at home, you (go/ can go) upermarket.8
. If you (will be/ are) a good listener, you will gain many friends.\
9. James won’t attend the meeting if he (won’t/doesn’t) want to
.10. You can’t have this job unless you (have/will have) long working experience.
11. What (you will do/ will you do) if it snows tomorrow?
12. You (will be/ are) able to understand it you practice every day
.13. We will eat out today if there (will be/ is) nothing left in the fridge.
14. If it (will be/ is) too cold outside, we will stay home.
15. If she (isn’t/ won’t) careful, she will make many mistakes.
1. A: I saw Brian a few days ago.
B: Oh, did you? What’s he doing. these days?.............. (what / he / do)
A: He's at university.
B:……What is he studying……… ? (what / he / study)
A: Psychology.
B: ......is he enjoying.......... it? (he / enjoy)
A: Yes, he says it's a very good course.
2. A: Hi, Nicola. How ........is your new job going................. ? (your new job /go)
B: Not bad. lt wasn't so good at first, but ……it is getting……….. better now. (it / get)
A: What about Daniel? Is he OK?
B: Yes, but ………he isn't enjoying………… his work right now. (he / not / enjoy).
He's been in the same job for a long time and …he begins…. to get bored with it. (he / begin)
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