Giải toàn bộ các bài này dùm mình đi ạ

Qua bài văn tinh thần yêu nước của nhân dân ta em hiểu thêm được gì về lòng yêu nước của nhân dân ta

Cho các chất sau: S, SO3, H2SO4, SO2 , Na2SO4 hãy sắp xếp thành một chuỗi phản ứng và viết phương trình phản ứng để hoàn thành chuỗi đó

Tìm 2 số có tổng là 1000 biết giữa chúng có 50 số lẻ giải ra

Câu 5: Tìm biết (x +3).(2y-1) = 5

16. She is not doing ___________ in the garden, just walking with her dog. A. anything B. nothing C. something D. one thing 17. It is twelve o'clock, Mai Anh. Let's ___________home. A. goes B. to go C. going D. go 18. My brother and I ___________ our grandmother next weekend. A. visit B. am going to visit C. am visiting D. are going to visit 19___________ he plays the guitar! A. What beautiful B. How beautifully C. How beautiful D. What beautifully 20. I don't want much sugar in coffee. Just ___________, please. A. a little B. little C. few D. a few 21. At an intersection, we must___________. A. ride quickly B. go fast C. slow down D. run out 22. What's___________ lunch? -There is some rice and some meat. A. for B. in C. to D. at 23. Is there anything to drink? ~ I'm___________. A. hungry B. tired C. thirsty D. cold 24. Look _________ that strange man! He is looking ___________ Lan but she isn't here. A. for/ at B. at/ for C. at/ after D. at/ on 25. You are too fat. You shouldn't eat much___________. A. meat B. fruit C. fish D. vegetables 26. ___________ do people need more food? ~ Because there are more people. A. What B. Why C. Where D. How 27. Where is your mother? ~ She is in the kitchen. She___________ dinner. A. cooks B. cooking C. cooked D. is cooking 28. How___________ do you brush your teeth? ~ Three times a day. A. many B. much C. usually D. often 29. ___________ straight across the road. A. Don't run B. Not run C. No running D. Can't run 30. When it becomes hot, people often feel ___________. A. hungry B. thirsty C. happy D. worried 31. Of the three students, Nga is ___________. A. the best B. good C. better D. well 32. What is your favorite food? ~____________ A. My favorite food is orange juice. C. I like coffee and lemonlade. B. Orange juice is my favorite food. D. I like chicken and fried fish. 33. They ___________ late for school. A. never are B. don't C. are never D. never 34. ___________ are you going to stay here? ~ For a week. A. How often B. How long C. How many D. How far 35. Miss Trang always ___________ her own clothes. A. does B. wants C. cooks D. makes 36. They've got..........books than me. A. fewer B. less C. much D. many 37. Does she want............... her grandparents at weekends? A. visit B. visits C. visiting D. to visit. 38. He ............ drive too fast because it is very dangerous. A. should not B. don't should C. should D. not should 39. What...........the weather like today? A. do B. is C. does D. A&B 40. Don't talk. John ..........in his room. A. sleep B. to sleep C. is sleeping D. sleeps 41. Students live and study in a/an.............school. They only go home at weekends. A. international B. small C. boarding D. overseas 42. .................going to the museum? A. What about B. Why don't C. Let's D. Do you want 43. Nam is learning how ............a computer. A. to use B. using C. use D. uses 44. Of my parents, my father is...................one. A. the stronger B. the strongest C. strong D. stronger 45. I don't like much sugar in my coffee. Just .................please. A. few B. little C. a little D. a few 46. What's your favorite drink? - I like ........... A. oranges B. beef C. apple juice D. cabbage 47. Smoking is harmful .................your health. A. for B. on C. about D. to 48. I ..............Ha Long with my family fives years ago. A. visit B. visit C. visited D. visiting 49. When I saw your teacher this morning, I found that he looked very ................... A. happy B. happily C. to be happy D. being happy 50. Our teacher always makes us ...... a lot of homework at home. A. do B. work C. to do D. doing

I. For each question, complete the second sentence so that it means the same as the first. Use the word in brackets. You may need to change the word. Here is an example. 0. The bookshop is opposite the library. ____________________ a bookshop opposite the library. (THERE) Answer: 0. There is 1. No mountain in Viet Nam is as high as Fansipan. Fansipan ___________________________________. (HIGHEST) 2. No desert is as hot as Sahara. Sahara ___________________________________. (HOTTEST) 3. The USA is larger than Australia. Australia ___________________________________. (SMALL) 4. The Amazon River is longer than the Mekong River. The Mekong River ___________________________________. (SHORT) 5. There are few people in this area of the country. This area ___________________________________. (CROWDED) II.Read the passage and use the words from the box to fill the gaps. There are TWO words you will NOT need. fresh supermarkets convenient friendly neighbourhood minimarts difficult I live in a district in Ha Noi. I like my (1) ____ very much because it's nice and less polluted than other areas in Ha Noi. There are many trees around here so it is very cool. The air is also (2) ____. There is a large playground so we can play badminton in late afternoons. Children in the area can also do roller-skating. It is very (3) ______ to live here because it is easy to get around. In the area, there is a primary school, a small open-air market, some minimarts. Sometimes we can buy things in the (4) ______. My neighbours here are also very kind and (5) ______. They look after my house when I am away.

rút gọn phân thức rồi tính A=1/a+3+2/a^2+5a+6+3/4a^2+15a+14

I. Choose the word whose underlined part is pronounced differently from the others in each group. 1. A. garden B. yard C. market D. warm 2. A. aerobics B. carrot C. lemonade D. correct 3. A. armchair B. sandwich C. chocolate D. school 4. A. ahead B. white C. behind D. hungry 5. A. stadium B. accident C. finally D. animal 6. A. bikes B. invites C. practices D. writes 7. A. island B. sports C. bookstore D. sister 8. A. leaf B. of C. half D. wife 9. A. talked B. looked C. lived D. stopped 10. A. throw B. clothes C. these D. gather II. Choose the words that has a stressed syllable from the others: 11. A. distance B. unhappy C. different D. family 12. A. practice B. classmate C. complete D. answer 13. A. important B. partner C. dialogue D. pretty 14. A. question B. information C. invitation D. population 15. A. energy B. household C. student D. appliance

Một cái sân có chu vi 40 m. Chiều dài sân là 12 m. Tìm diện tích cái sân đó?