Ghi tất cả các bài văn được học ở cuối học kì 2 lớp 5. Giups với quên vở ở lớp mà phải ôn.

`A= 5/1 + 5/3 + 5/9 + 5/27 + 5/81 + 5/243`

Các bạn viết cho mình bài về kế hoạch cho một chuyến đi đến hạ Long các bạn có thể dựa vào bài tả về hạ Long này nha Giúp mình nhen

Choose A, B, C or D to indicate the correct answer to each of the following questions. 1. I like going to the beach ______ the summer. A. in B. on C. at D. with 2. I'll see you ______ May. A. for B. at C. in D. on 3. Let's meet ______ 4:30 this afternoon. A. at B. for C. in D. over 4. It was stormy ______ my 13th birthday. A. for B. at C. in D. on 5. I'll hold a meeting ______ the 10th of June. A. at B. in C. on D. over 6. I like to watch TV ______ night. A. at B. in C. on D. between 7. My school is ______ Tran Hung Dao street. A. from B. on C. at D. in 8. Hang's piano classes are ______ Mondays and Fridays. A. on B. of C. in D. about 9. He goes to school ______ car. A. on B. in C. with D. by 10. My meeting is ______ Thursday morning. A. about B. of C. in D. on 11. I was born ______ Edinburg. A. on B. at C. into D. in 12. My father will be back ______ a few hours. A. at B. over C. in D. on 13. Tomorrow, I’ll take a test ______ the afternoon. A. of B. on C. in D. for 14. He poured the tea ______ the cup. A. into B. at C. over D. on 15. He put the books ______ the table. A. over B. on C. at D. in 16. The father sat ______ his kids. A. near to B. above C. next to D. under 17. To answer this question, you can search for more information ______ the Internet. A. over B. in C. at D. on 18. When I was young, I went ______ school ______ foot. A. to - in B. to - by C. to - on D. at - on 19. My nephew is doing his homework ______ the moment. A. for B. at C. in D. during 20. Everything happened ______ the same time. A. On B. In C. At D. Under 21. The game show will not be ______ TV this week. A. over B. in C. for D. on 22. I'll see you ______ a moment. = in a while A. at B. in C. around D. with 23. Look ______ him, he is singing! A. at B. in C. around D. with 24. I usually exercise ______ 15 minutes before having breakfast. A. B. C. on D. for 25. My grandfather lives ______ the sea. A. at B. by C. under D. near to

II. Put the verbs in brackets in present perfect simple or present perfect continuous. 1. It's the first time I (ever/ eat) __________________ octopus! 2. Sandy (not /see) __________________his sister since she went to university. 3. They (go) __________ on holiday to Spain and won't be back until the end of the month. 4. Poor Tracy! She (write) __________ that essay for hours now and she still hasn't finished! 5. (you / ever / meet) __________________anyone famous? 6. I (try) ________________ to get in touch with Jenny all morning but I can't find her anywhere. 7. I (not finish) __________________the book yet so I can't tell you what happens. 8. (you / already / decide)__________________ where you're going this summer? 9. We (live) __________________here for the last six years. 10. I (never / hear)__________________ such nonsense! 11. I (wait) __________________ for you since ten o’clock. 12. Watch out. I (just paint) __________________ the door. 13. I look tired because I (work) __________________ really hard today. 14. John (see)__________________ Ann twice this week. 15. He (know) __________________ her for a year. 16. ____________ you _____________ (see) the film “The Lord of the Rings” yet?

đề là rút gọn biểu thức ạ, em để 30 điểm mng nha

Trong mặt phẳng hệ tọa độ Oxy, cho tam giác ABC có đường tròn nội tiếp tiếp xúc với 3 cạnh BC,CA,AB lần lượt tại M,N,P . Gọi d là trung điểm cạnh BC . Biết M(-1,1) , NP: x+y-4=0 và AD" 14x-13y+7=0 .Tìm tọa độ điểm A

Nhờ mn giúp mik 2 bài này với ạ

Cho các đa thức A(x) = -1 + $5x^{6}$ - $6x^{2}$ - 5 - $9x^{6}$ + $4x^{4}$ - $3x^{2}$ B(x) = 2 - $5x^{2}$ + $3x^{4}$ - $4x^{2}$ + 3x + $x^{4}$ - $4x^{6}$ - 7x a) Thu gọn và sắp xếp các số hạng theo thứ tự giảm dần của biến b) Tìm bậc và các hệ số của mỗi đa thức

26.There is someone ______ the door. A. on B. at C. over D. in 27. This is a comfortable flat ______ us ______ live in. A. for - for B. from - to C. for - to D. with - to 28. Jennie smiled brightly ______ him, giving him butterflies in his stomach. A. at B. on C. over D. in 29. He has been absent ______ Monday. A. for B. since C. around D. on 30. She has made up her mind to stay ______ home ______ Christmas Day. A. at - on B. in - on C. at - at D. in - on 31. I was chatting ______ my colleague ______ lunchtime. A. with - in B. about - in C. with - at D. on - at 32. I had chicken salad and a glass ______ orange juice ______ dinner. A. of - in B. with - for C. of - for D. with - at 33. This town was very popular ______ tourists ______ the 1980s. A. with - on B. with - in C. with - on D. for - in 34. Write it ______ the paper, ______ the top of the page. A. on - at B. in - at C. on - in D. in - on 35. The train arrives ______ Chicago ______ ten o'clock. A. at - in B. near - at C. in - at D. from - to 36. There is a masterpiece hung ______ the wall ______ the window. A. in - above B. on - opposite C. on - between D. above - near 37. The bank is ______ the supermarket. A. next B. above C. opposite D. between 38.She likes to go ______ a picnic. A. for B. on C. in D. A and B 39. Everybody, let’s have a toast ______ his success. Cạn ly vì… A. in B. with C. to D. for 40. There was a loud noise which startled everyone ______ midnight. A. in B. through C. at D. for 41. I usually go to my parents' house ______ Christmas. We eat turkey together ______ Christmas Eve. A. at - in B. in - on C. at - on D. in - in 42. Firework display is a common ways of celebration ______ Lunar New Year’s Eve ______ Vietnam. A. on - in B. at - in C. on - at D. in -in 43. Take the next road ______ the left, then you will arrive ______ a pharmacy. A. in - at B. to - in C. in - at D. on - at 44. Telephone was invented ______ the 16th century. A. in B. on C. at D. for 45. There is a skyscraper ______ the city’s square and the amusement park. A. on B. between C. among D. from 46. It's better to travel ______ taxi if you are alone ______ night. A. by - at B. in - on C. in - at D. by - on 47. Nathan is a good friend ______ mine. A. for B. of C. in D. to 48. There is a new shopping center opening ______ the corner of this street. A. from B. at C. on D. in 49. ______ the most part, his explanations are quite easy to understand. A. For B. In C. Through D. By 50. ______ the ocean, corals are at risk from rising sea temperatures A. In B. From C. At D. On