Cho tam giác ABC vuông tại A BC =4 A) C=30°, tính AB,AC B) AD là phân giác của A . Tính BD,DC ?

Trộn 100 ml dung dịch H2SO4 0,5 M với 100 ml dung dịch NaOH 4 M, tìm nồng độ của các ion

vẽ mầm đậu NL:cóa ai bt sao tui nhìu đỉm khum,not điểm danh,mới gia nhập mờ :>>

Choose the best one (A, B, C or D) to complete the sentence. 1. No one else in the class plays the guitar John. A. as well B. as far as C. so well as D. as soon as 2. The Brit School is the most famous arts school in Britain. A. performing B. performance C. perform D. performed 3. Jane is not her brother. A. more intelligent as B. intelligent as C. so intelligent as D. so intelligent that 4. Since the 1970s, the festival in Glastonbury has taken almost every year and has grown in size. A. part B. place C. note D. notice 5. He drives as his father does. A. careful as B. more carefully C. the most careful D. carefully as 6. Dong Ho paintings are made on paper with beautiful colors. A. traditional – nature B. tradition - natural C. tradition – nature D. traditional - natural 7. I’ll be there I can. A. sooner as B. no sooner as C. as soon as D. soonest as 8. My village is not it was ten years ago. A. the same as B. the same to C. same as D. the same 9. The villagers are they were years ago. There is no change at all. A. differently from B. not as friendly as C. as friend as D. as friendly as 10. Water puppetry in the 11th century in the villages of the Red River Delta of North Viet Nam. A. originated B. formed C. started D. began 11. The puppet shows present themes of Vietnamese villages. A. city B. urban C. village D. rural 12. No one in my class is beautiful her. A. as – as B. more - as C. as - than D. the - more 13. The group is for their albums and tours around the world. A. well-knows B. know-how C. well-prepared D. well-known 14. Going by train isn’t convenient as going by car. BÀI TẬP TIẾNG ANH LỚP 7 – Có đáp án 36 A. so B. as C. more D. A & B are correct. 15. The performances of puppetry show in the countryside and . A. everyday life - folk rock B. every day life - folk people C. everyday life - folk tales D. every day life - folk stories

II. Write the second sentence so that it has a similar meaning to the first one. 1. It takes us more than two hours to see the film “Avatar”. The film “Avatar” 2. She likes to hang out with friends on Saturday evening. She’s interested 3. She only allows her children to watch television at weekends. She only lets 4. Could you help me with this box? Would you 5. DIY skills aren’t as hard to learn as I think. DIY skills are _______________________________________________ 6. Who will take care of the garden while you are away? Who will look 7. How about going window-shopping this afternoon? Shall 8. What leisure activity do you like most? What’s

a^2>12 bc cmr a^2/2+b^2+c^2>ab+bc+ca

Chứng minh định lí: Nếu một đường thẳng cắt một trong hai đường thẳng song song thì nó cũng cắt đường kia.

mong mọi người giúp em làm bài 14 15 16 17 mọi người nhớ làm ra giấy hộ em nha xong vote cho 5 start và ctlhn

Mọi người giúp em câu này với ah!

41. Lili: "____________" Christina: "Please go ahead!" A. Where is the post office? B. Is it far from here? C. Do you mind going there on foot? D. Do you mind if I sit here? 42. Victor: "Shall we go to the cinema?" Bean: "___________" A. Yes, let's. B. Yes, we shall. C. Yes, let us. D. Yes, I am. 43. William: "Let's go to China Town to have dinner!" His friends: "____________." A. Yes, please. B. No, we don't. C. Sure, why not? D. Of course. 44. A: "Thanks for helping me with my exam!" B: "______________" A. No way. B. Don't mention it. C. So what? D. Of course. 45. Mai: "Linh, you picked me up yesterday. Thanks a bunch!" Linh: "_______________" A. Who else? B. Never mind. C. You're welcome. D. Never again. 46. Tommy: "Would you like to see a movie tonight?" George: "___________" A. Yes, by all means. B. Really? C. Why don't you ask me early? D. That sounds lovely. 47. Kate: "Would you like some more wine?" Jack: "_________________" A. No, I wouldn't. B. Oh! I'm so thirsty. C. No, I'm not. D. Sorry, I can't drink wine. 48. Sam: "I've won some lottery tickets." Laura: "______________" A. How comes! B. It's ridiculous! C. Congratulations! D. How stupid! 49. Mike: "I'm sorry for coming late." Lily: "___________" A. Never mind! B. Shut up! C. Stand there! D. Sit down, please! 50. John: "Sorry. It's my fault! I misunderstood the instruction." Sam: "_____________ Everything will be all right." A. Go ahead! B. Keep it a secret! C. Why not? D. Not too worried! 51. Phil: "You're great dancer, Huong. I wish I could do half as well as you." Huong: "________________" A. Thanks, Phil. That's a nice compliment! B. I also think so! C. My mother also told me that. D. Never mind. 52. Janet: "Do you feel like going to the cinema this evening?" Susan: "____________" A. I don't agree. I'm afraid. B. You are welcome. C. That would be great. D. I feel very bored 53. Laura: "What a lovely house you have!" Maria: "_________" A. Of course not, it's not costly. B. Thank you. Hope you will drop in C. I think so. D. No problem. 54. Liz: “Thanks for the nice gift you brought to us!” Jennifer: “______” A. Not at all. Don’t mention it. B. All right. Do you know how much it cost? C. Welcome! It’s very nice for you. D. Actually speaking, I myself don’t like it. 55. Lora: “Do you mind if I turn on the fan?” Maria: “___________” A. Not for me B. Not at all. C. Never mind. D. Not enough. 56. Mary: “Thanks a lot for your help.” John: “__________.” A. My happiness B. My excitement C. My delight D. My pleasure 57. Peter: “How do you do?” Mary: “____________” A. Yeah, OK. B. Not too bad. C. How do you do? D. I’m well. Thank you 58. Lam: “Bye!” Lan: “__________” A. See you lately. B. See you later. C. Thank you. D. Meet you again. 59. John: “I’ve passed my final exam.” Tom: “_____________” A. Good luck. B. It’s nice of you to say so. C. That’s a good idea. D. Congratulations! 60. Tom: “How often do you go to school?” Marrie: “_____________” A. I go there early. B. Every day except Sunday. C. I do not think so. D. I go there by bus.