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II. Fill in the gaps with How much / How many: 1. ...How..........beer is there in the fridge? 2. ...How....................eggs do you want? 3. ...How........languages do you speak? 4. ...How......people are there in the class? 5.....How.......days are there in a week? 6. ...How....milk do you drink every day? 7. ...How..........kilos of rice do you want?
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Virus gây viêm phổi Vũ Hán (viết tắt SARS-CoV-2) là một chủng coronavirus gây ra bệnh viêm đường hô hấp cấp xuất hiện lần đầu tiên ở thành phố Vũ Hán (Trung Quốc) và bắt đầu lây lan nhanh chóng sau đó. Có một số thông tin di truyền về chủng virus này như sau: - Các nhà khoa học đã nhận thấy chúng có tổng số 29903 nucleotide, trong đó số nucleotide từng loại A, U, G, X có số lượng lần lượt là 9594, 8954, 5492, 5863. - Một mARN quan trọng mã hóa cho vỏ protein của virus có bộ ba mở đầu từ vị trí nucleotide thứ 29558 và kết thúc ở vị trí nucleotide thứ 29674. Từ những thông tin trên, một học sinh đưa ra một số phát biểu. Có bao nhiêu phát biểu đúng? I. Phần trăm mỗi loại nucleotitde (A, U, G, X) của virus này lần lượt là 32,08%; 29,94%; 18,37%; 19,61%. II. Vật chất di truyền của virus SARS-CoV-2 là một phân tử RNA mạch đơn. III. Đoạn mARN trên có chứa 116 nucleotitde. IV. Phân tử protein cấu trúc do đoạn mARN trên mã hóa có tối đa 39 axit amin. Mn giúp em với ạ

71. I like looking at these pictures, but I ........enough by lunch-time. A. should have B. will have C. will have had D. have 72. John .........tennis once or twice a week. A. usually play B. is usually playing C. usually plays D. have usually played 73. I........for Christine. Do you know where she is? A. look B. looked C. am looking D. looks 74. At 5 o’clock yesterday evening, I ........my clothes. A. am ironing B. have ironed C. ironed D. was ironing 75. I ..........along the street when I suddenly heard footsteps behind me. A. was walking B. am walking C. walk D. walked 76. She ..........German for two years. A. has learned B. is learning C. learns D. learn 77. The earth ..........round the sun. A. go B. has gone C. went D. goes 78. Mathematics ...........very interesting to me. A. are B. have been C. were D. is 79. After he .............the house, he wrote a letter. A. cleans B. had cleaned C. has cleaned D. was cleaning 80. There are no more appeals. We .........them all. A. had eaten B. eat C. ate D. have eaten 81. Mark was listening to music while his sister ............a book. A. read B. reads C. is reading D. was reading 82. They..........serving meals by the time we get to the restaurant. A. will stop B. stopped C. are stopping D. will have stopped 83. Tomorrow I...........my grandparents. A. am going to visit B. will have visited C. have visited D. visit 84.Ted and Amy ...........for 24 years. A. married B. have been married C. were married D. has been married 85. I think the weather .............better later. A. will be B. be C. is D. has been 86. I was sad when I sold my car. I ..........it for a long time. A. am running B. were running C. had been running D. have been running 87. .............a car when they were living in London? A. Have they B. Did they have C. Were they having D. Have they had 88. She ..............angry when she knows this. A. shall be B. has been C. will have been D. will be 89. When their first child was born, they ..........married for three years. A. have been married B. had been married C. will be married D. will have been married 90. Sorry, I can’t stop now. I ......... to an important appointment. A. go B. am going C. have gone D. was going

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