`7/2 - [1/2+1 1/3] ×1/3` Tính giá trị của biểu thức trên.

9. A. ask B. plastic C. back D. grandparents 10. A. tomato B. natural C. bath D. garden 1. My house is bigger than your house. =>Your house ……………………………………………….. 2. The black car is cheaper than the red one The red car ……………………………………………………… 3. We will plant more trees. The air will be fresher. If .......................................................................................................................................... 4. We will use fewer cars. We will reduce pollution If ........................................................................................................................................... 5.We cycle to school every day. We keep fitter. If ..........................................................................................................

giúp mình với ạ mình đang cần gấp

71. I will be waiting for you at the ………………… of the pagoda. (enter) 72. Watching TV is my favorite ……………………. in free time. (act) 73. I don’t like wearing ……………………… jeans. (embroider) 74. I didn’t ask them to help me. They did it ………………………. (volunteer) 75. I couldn’t see anything clearly thought that …………………. window. (steam) 76. I am one of his ………………………… (acquaint) 77. I can complete a Vietnamese ……………… test if necessary. (speak) 78. I am thankful to my teacher who gives me a lot of ………………………. (encourage) 79. Hong Loan’s listen is ………………………… (excellence) 80. How can we ……………………… people from throwing cans away? (prevention) 81. You can listen to pop music on the ……………………. TV stations. (commerce) 82. Nowadays, parents have little time to …………………. with the children. (interactive) 83. He has had treatment for 2 months now without any …………………… (improve) 84. Nothing ……………………. him. He is always……………………. (satisfy / complaint) 85. My younger brother has a fine ………………… of stamp. (collect)

56. My colleague always helps everyone ………………………. (habit) 57. My friend has been the BBC’s political …………………… for many years. (correspond) 58. He has explained that matter ……………………… (collective) 59. All the information was …………………… unclear, we can’t see it. (surprise) 60. She started writing ……………………… at the age of 19. (poetic) 61. Tuoi Tre Newspaper is a …………………… one. (day) 62. He turned off the …………………… when he went out of the house. (electric) 63. He was one of the most talented …………………… in our nation when he was young. (music) 64. He is always guided by religious …………………. (believe) 65. Her proposals met with an enthusiastic ……………………… (respond) 66. Her success is our great ………………………. (happy) 67. Here is his …………………… place at the table. (habit) 68. His school is being ………………….. at the moment. (beautiful) 69. John’s …………………… has ………………… a lot since last year. (behave / improvement) 70. I bought a good …………………… at Nguyen Kim supermarket yesterday. (cook)

Các vận động viên thể thao luyện tập lâu năm thường có chỉ số nhịp tim / phút thưa hơn người bình thường. chỉ số này là bao nhiêu và điều đó có ý nghĩa gì? Có thể giải thích điều này thế nào khi số nhịp tim/ phút ít đi mà nhu cầu oxi của cơ thể vẫn được đảm bảo?

41. Do you often check your ………………… before travelling abroad? (arrange) 42. Do you think you have the …………………… to pass the exam? (able) 43. Do you believe in …………………. between men and women? (equal) 44. Earthquakes often come together with volcanic …………………… (erupt) 45. The lava in the ……………… ……………… as it cools. (volcanic / solid) 46. …………………… are trying their best to prevent air ………………. (environment / pollute) 47. Even if you have dark skin, you still need ………………… from the sun. (protect) 48. The planet of our ……………… system are Mercury, Venus, Earth and so on. (sun) 49. Teenagers are now ……………………… dressed. (fashion) 50. Mr. Brown will need all the support and …………………… present for me. (courage) 51. He had an accident because he was driving ……………………. (care) 52. He is known for his ……………………. to his classmates. (generous) 53. Toys are ………………… for the mental ………………. of children. (necessity / grow) 54. He …………………. participated in the fight against air pollution. (active) 55. Fresh food must be ……………………… carefully. (preserve)

Lúc trước mình tải video trên máy tính vẫn bình thường nhưng không biết sao dạo này mình tải được nhưng chỉ có tiếng không có hình, mình đã thử nhiều lần với nhiều video và nhiều cách khác nhau nhưng chỉ tải được mỗi tiếng. Giúp mình nha mình mơn nhiều

Tính nồng độ phần trăm của dd sau a.trong 600g dd kaliclorua chứa 20g kaliclorua b.hoà tan 15g natri vào 45g nc

Máy tính mình khi mở Word (2016) thì nó bị vậy, ai biết cách fix ko chỉ mình với ạ ! (Ảnh ở bên dưới là sau khi mình chọn "OK')