số trung bình cộng của hai số là 245 biết 1 trong 2 số đó là 199 tim số con lại

Choose the word (A,B,C or D) whose underlined part is pronounced differently from those of the other 1. A Grade B.assign. C. Ability. D. Amazing 2. A. Arms. B. Suits. C. Chairs. D. Boards 3. A. Devoted B. Suggested C. Provided D. Wished 4. A. Influence B. Strive C .remind D.reliable

Exercise 6. Mark the letter A, B, C, or D to indicate the correct answer to each of the following questions. 51. Listen! There's someone at the door. I ____ the door for you. A. am going to open B. am opening C. open D. will open 52. “Look at those dark clouds!“ - “Yes, it ____ in some minutes.” A. will rain B. is going to rain C. are going to rain D. is raining 53. It‘s very hot. ____ the window. please? A. Are you opening B. Are you going to open C. Will you open D. Won’t you open 54. Although I have taken some aspirin, the headache ________ away. A. isn‘t going B. isn’t going to C. not go D. won’t go 55. On Sunday at 8 o‘clock I ____ my friend. A. meet B. am going to meet C. will be meeting D. will meet 56. Wait! I ____ you to the station. A. am driving B. drive C. is going to drive D. will drive 57. I ____ my sister in April as planned. A. have seen B. will see C. am going to see D. see 58. Perhaps I ____ New York one day. A. am visiting B. am going to visit C. visit D. will visit 59. What time ____ tomorrow? A. are you going to leave B. do you leave C. will you leave D. would you leave 60. Who ____ the next World Cup? A. is going to win B. is wining C. will win D. win 6l. He ____ to the theatre tonight. He has got a free ticket. A. goes B. is going C. went D. will go 62. I ____ my parents at the weekend. I already bought a train ticket. A. visit B. am going to visit C. visited D. will visit 63. Don‘t touch that dog. It ____ you. A. bites B. is biting C. is going to bite D. will bite 64. It ____ that half of your plate should consist of vegetables and fruit. A. is suggested B. is suggesting C. suggesting D. suggests 65. Foods ____ into energy in the digestive system. A. are broke down and converted B. are broken down and converted C. break down and convert D. broken down and converted 66. Stephen William Hawking ____ on 8 January, 1942 in Oxford, England. A. born B. has born C. is born D. was born 67. ____ by your father? A. Did that book write B. Did that book written C. Was that book writing D. Was that book written 68. Acupuncture is part of traditional Chinese medicine(TCM) and ____ in China for thousands of years. A. has been used B. has using C. has used D. has been using 69. Mr. Snow ____ that course since 1985. A. hasn’t taught B. haven’t taught C. have been taught D. taught 70. The acupuncturist decides which and how many needles will ____. A. be use B. be used C. Use D. used 71. The teacher ____ the student for lying. A. was punished B. is punished C. punished D. has been punished 72. As the patient could not walk he ____ home in a wheel chair. A. has carried B. was carrying C. was carried D. has been carried 73. The injured ____ to the hospital in an ambulance. A. have taken B. was taking C. were taken D. were taking 74. It ____ that the painting is a fake. A. believed B. is believed C. is believing D. was believing

GIÚP ĐI .........................................................................

giúp mik với ạ plzzzzzzzzzzzzzzzzzzzzz

huyên đông anh đc trở thành thành đơn vị hành chính của thủ đô hà nội vào năm nào

Hoa is smart and nice. She can be a good teacher in the future. Viết lại câu

Ma-la-can Gia-mê-ma Nhiệt độ: Tháng nào cao nhất? Bao nhiêu độ C? Tháng nào thấp nhất? Bao nhiêu độ C? Lượng mưa: Tháng nào nhiều nhất? Bao nhiêu mm? Tháng nào ít nhất? Bao nhiêu mm?

Ai giúp mình với mình sắp kt rồi

Một hợp chất có tỉ lệ khối lượng của các nguyên tố `\text{Ca:N:O}` lần lượt là `10:7:24`. Xác định công thức hóa học của hợp chất biết `\text{N}` và `\text{O}` hình thành nhóm nguyên tử, và trong nhóm tỉ lệ số nguyên tử của `\text{N:O} = 1:3`