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Levanoai12345
2 năm trước
Người ta điều chế kẽm oxi bằng cách đốt kẽm trong oxi a) Tính thể tích oxi (đktc) cần thiết để điều chế 48,6g kẽm oxit b) Muốn có lượng oxi nói trên cần phân hủy bao nhiêu gam kali clorat (KCLO3)
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help me phải đúng chính xác nhé IV. Finish each of the following sentences 1. Mr. and Mrs. Smith are flying to Hanoi now. (TRAVELLING) 2. Van had a motorbike once, but he doesn’t any more. (USED) 3. My father usually goes to work by car. (DRIVES) 4. This part of the city didn’t have traffic jams very often. (USE) 5. I used to walk to school when I was young. (FOOT) V. Use the words given to complete each of the following sentences. 1. Traffic jam/ one/ most common/ issue/ big city/ world//. 2. There/ many/ people/ use/ road/ and/ one/ main reason/ cause/ traffic jam//. 3. We/ solve/ traffic problem/ by/ encourage/ people/ use/ bicycle/ rather/ car/ short trip//. 4. People/ use/ public transports/ reduce/ number/ private vehicles/ road//. 5. Move/ big/ company/ factory/ city/ countryside/ help reduce/ traffic jam//.

ening D. opens 5. Would you mind - Where is the fridge? - It's. on the light? A. turn B. to turn C. turmed D. turning 6. the corner of the kitchen.A. in B. at C. to D. above 7. Did the children enjoy when they were on holiday? A. themselves B. themself C. himself D. itself 8. Carmen didn't use to eat fish, but now she A. used to B. do C. does D. doesn't 9. I never go to Australia. I . . to Australia yet. B. have been C. will go A. went D. haven't been 10. I'm ... Let's do something. How about going to a movie? A. boring 11. I'm hungry. C. bored is for dinner this evening?A. Why B. bore D. being bored B. When C. How D. What 12. The old lady sat in a corner talking to .. .A. himself themselves B. itself C. herself D. swimming very much.A. wait 14. The teacher said, "Come at 8 o'clock".→ The teacher told the students. 13. I B. try C. enjoy D. finish at 8 o'clock. A. not to come B. to come C. coming D. came 15. Mary is watching a film. She really likes it. Mary is really C. interested A. to interest B. interest D. interesting 16.. .. to do homework today?A. Have you B. Do you have C. Must you D. You must 17. She knows that he worked really. this semester. A. good B. hardly C. better D. hard 18. Stop, boys! It's .. .. near the streets. A. dangerous for playing B. dangerously to playC. dangerous to playingD. dangerous to play 19. It's possible to supplement one's by taking a part-time job. C. gaining A. income B. eaming D. attainment 20. Do you mind if I switch on the radio? - A. No, thank B. Yes, go ahead C. No, not at all D. Yes, you can II. Fill in the correct verb form. L They (come). back home after they (finish) their work. 2 She said that she (meet) Mr. Bean before. 3. Before he (go) to bed, he (read) a novel. such kind of clothes before. 4. He told me he (not/wear) 5. When I came to the stadium, the match (start) to bed last night. his homework, he (go) 6. After Nick (do) 7. Mai (live) 8. Phong (tell) 9. Ms. Hong (work) to Ha Noi three years ago. in Hai Phong for five years before she (move) me yesterday that he (learn) at our school for twenty years before she (retire). French for a year. last June. to Nick's house, his party (already/ start) back to our home village last month, it (change) 10. By the time I (get) so much. 11. When we (come) Paop43 Ai giải hộ bài này cho e vs ạ e đg cần gấp

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