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Các bạn giúp mk nhé ai làm nhanh mk cho 5 sao và ctlhn
I. Choose the best answer in each sentence below by circling it. 1. You are late. If you …… a few minutes earlier, you …… him. A. came / would meet B. had come / would have met C. come / will meet D. had come / would meet 2. “Can I borrow your car for this evening?” “Sure, but Nora’s using it right now. If she …… it back in time, you’re welcome to borrow it.” A. brings B. would bring C. will bring D. brought 3. We’re going to lose this game …… the team doesn’t start playing better soon. A. if B. unless C. although D. whereas 4. If I …… somebody else, I’d like to be a film star. A. could be B. would be C. become D. must be 5. If he had told me the truth, I …… him. A. would have not punished B. would not have punished C. would not punish D. will not punish 6. If they had not given me advice, I …… again. A. would have failed B. would fail C. would have been failed D. wouldn’t fail 7. …… immediately, I will call a policeman. A. Unless you leave B. If you leave C. If you didn’t leave D. Unless you left 8. Bill …… more photographs if he …… more film. A. would have taken / had had B. would have taken / had C. would take / has had D. would take / had had 9. If there …… no floods last year, the crop …… better. A. had been / would have been B. were / would be C. had / would have been D. was / would have been 10. Had you told me that this was going to happen, I …… it. A. would never have believed B. don’t believe C. hadn’t believed D. can’t believe 11. If someone …… into the store, smile and say, “May I help you?” A. comes B. came C. come D. could come 12. If I had a chance to do creative work, I …… happy working in an office. A. would be B. will be C. would have D. will feel 13. If they …… soon, I’m not going to wait. A. don’t come B. won’t come C. hadn’t come D. didn’t come 14. If I …… hungry, I …… something. But I am not hungry now. A were / would eat B. had been / would have eaten C. had been / would eat D. were / would have eaten 15. You won’t pass the examination …… you study more. A. unless B. as C. if D. whether 16. I’m playing tennis tomorrow …… it’s raining. A. unless B. if C. as long as D. provided 17. Tell him to ring me if you …… him. A. see B. saw C. have seen D. had seen 18. Unless she ……, she’ll be late. A. hurries B. didn’t hurry C. hurried D. doesn’t hurry 19. Would George be angry if I …… his bicycle without asking? A. took B. take C. had taken D. would take 20. I …… you a postcard while I was on holiday if I …… your address. A. would have sent / had had B. would have sent / had C. would send / had D. would send / had had 21. …… still my friend if I were put in prison? A. Would you be B. Will you be C. Would you D. Would you are 22. If anybody …… any question, please ask me after class. A. has B. have C. don’t have D. doesn’t have 23. If I weren’t working for an accounting firm, I …… in a bank. A. would be working B. will work C. have worked D. work 24. He said, “…… watch TV all the evening if you wish.” A. You may B. You have to C. You need to D. You should 25. If he ……, please tell me. A. comes B. won’t come C. will come D. come
Thả 1,6 kg nước đá ở -10 độ C vào 1 nhiệt lượng kế đựng 2kg nước ở 20 độ C. Bình nhiệt lượng kế bằng nhôm có khối lượng 200g a) Nước đá có tan hết hay không? b) Tinhd nhiệt độ cuối cùng của nhiệt lượng kế biết nhiệt dung riêng của nước đá là 2100J/Kg.K, nhiệt dung riêng của nước là 4190J/kg.K, nhiệt nóng chảy là 3,4.10^5
giải hộ 10 câu tường thuật này vs ạ
giải giúp mk với ạ mk đg cần gấp
Giúp em bài này với ạ , và giải thích các bước giúp em ạ
Nhanh hộ em với ạ !!! Hứa vote + ctlhn Biết hóa trị K(I), H(I), Ca(II) Hãy tính hóa trị của nhóm nguyên tử (SO4), (H2PO4), (PO4), (CrO4), (CO3) trong các hợp chất sao : H2CrO4, Ca(H2PO4), K3CO3, H2SO4, CaCO3
Một canô chuyển động từ bến A đến bến B ( ở cùng một bến bờ sông ) với vận tốc so với dòng nước là V1= 30km/h. Cùng lúc đó, một xuồng máy bắt đầu chạy từ bến B theo chiều tới bến A. Trong thời gian xuống máy bay từ B đến A thì chạy liên tục không nghỉ từ bến A đến bến B cả đi và về được 4 lần và về đến A cùng lúc với xuồng máy. Giả thiết chế độ hoạt động của canô và xuồng máy là không đổi, bỏ qua thời gian canô đổi hướng khi đến A và B, chuyển động của canô và xuồng máy là những chuyển động thẳng đều, dòng nữ chảy có hướng từ A đến B, vận tốc của dòng nước so với bờ sông là V2= 2km/h a) Tính vận tốc của xuồng máy so với dòng nước. b) Tính độ dài quãng đường từ bến A và bến B biết thời gian xuồng máy chạy từ B về A là 2h c) Nếu nước chảy nhanh hơn thì thời gian canô chuyển động trên quãng đường (như câu a) có thay đổi không? Vì sao?
II. There are ten mistakes in the text. Identify each mistake, write down and give your correction. If I had to choose one region of the world for my number one favourite for travelling, it would have to be Southeast Asia. There is simple more variety here than in almost any other region of the world. In food, religion, culture, Southeast Asia has as much variety and interest that you could possibly ask for. It is also a great area to travel simply for the challenge of travelling. Because Southeast Asia consists of so many islands and peninsulas, getting to places isn’t often a challenge and a lot of fun. Standard road and rail and air travel isn’t often possible. I’ll always remember the time that we rented a boat to sail to an Indonesian island of Komodo to see the famous dragons. We spent four days for pumping water out of the boat just to keep it afloat. Food is another great pleasure in travelling in Southeast Asia. After my first trip through the region I became a addict to tropical fruits. And the local Chinese and Thai dishes – just thinking about them make my mouth water. And spices? I’ve seldom spent more than a dollar and two for a meal. The greatest pleasure in travelling in Southeast Asia is the excitement of meeting new people. Its people that make travel worthwhile. More than anything I remember from my travels are the many different individuals I met and got to know along the way – people who have opened their countries, their homes, and their hearts to me
Để hòa tan hoàn toàn 36,3 g hỗn hợp Zn và Fe cần dùng vừa đúng 200ml dung dịch (B) chứa đồng thời 2 axit HCl 3M và H2SO4 1,5M thu được dung dịch (A) và V lít khí H2 (đkc). Tính mZn , mFe và V.
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