BÀI 2: Cho hai đa thức : A = x2 + 2xy – 4y2 B = 5y2 + 2xy + 2x2 - 1 a) Tính C = A + B, và tìm bậc của C b) Tính D = A – B, và tìm bậc của D c) Tính giá trị của C và D tại x = 1, y = -1

Trong phần thân bài của bài văn chứng minh, người viết cần phải làm gì? * 1 điểm A. Nêu lí lẽ và dẫn chứng để chứng tỏ luận điểm là đúng đắn. B. Chỉ cần nêu các dẫn chứng được sử dụng trong bài viết. C.Chỉ cần gọi tên luận điểm được chứng minh. D. Nêu ý nghĩa của luận điểm đã được chứng minh

cho mình vd 4 câu bị động và 4 câu chủ động nói về covid 19

Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in pronunciation. Question 1: A. calligraphy B. ideology C. botanical D. emphatic Question 2: A. examinee B. adoptee C. Portuguese D. microscopic Mark the letter A, B, C, or D on your answer sheet to indicate the word whose underlined part differs from the other three in stress. Question 3: A. machine B. technique C. archeology D. chemistry Question 4: A. transform B. enormous C. discover D. support Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each sentence. Question 5: …………….monuments are always great attractions for visitors and tourists. A. icon B. iconoclastic C. icons D. iconic Question 6: Anna likes music, but she doesn’t like ……………music that John plays. A. a B. an C. the D. X Question 7: ……………………………………. if he knew the answer. A. He is helping me B. He would help me C. He will help me D. He has helped me Question 8: It’s difficult to……………….what our lives would be like without music. A. expect B. imagine C. remember D. see Question 9: I bought these magazines……………….have something to read on the trip. A. for B. so that C. so as to D. in order Question 10: ……………….the pain in his leg, he completed the marathon. A. Although B. Even C. In spite D. Despite Question 11: I ……………………………….. jeans when I was a child. A. didn't use to wear B. wasn't wear C. hasn't wear D. don’t wear Question 12: People often……………the candles after singing “Happy Birthday”. A. blow out B. light up C. put on D. turn off Question 13: Do you mind if I…………..…………your phone? A. using B. used C. use D. am using

I. Give the correct form of the verbs. 1. They (do) it for you yesterday morning. 2. My father (call) you tomorrow. 3. We believe that she (recover) from her illness soon. 4. I promise I (return) from school on time. 5. If it rains, he (stay) at home. 6. You (take) me to the zoo this weekend? 7. I think he (not come) back his hometown. 8. She should ( get up) early and (do) morning exercises every morning. 9. Nam mustn’t ( play) games too much 10. You ever (be) to London? Yes, I (come) there three times. II. Make question with How and write the answers using suggestions. Ex: old/ you.?// ten - How old are you?/ What is your age? →I am ten years old. 1. tall/ he?/ one meter and 50 centimeters 2. heavy/ Hoa?/ 40 kilos 3. high/ these buildings?/ over 150 meters 4. long/ this table?/140 centimeters 5. deep/ the lake?/ about 5 meters 6. wide/ the room?/ 8 meters 7. thick/ that book? About 5 centimeters 8. old/ Mrs Ha? 45 years old 9. heavy/ the chicken? 3 kilos III. Complete the sentences below using the correct form of adjectives. 1. A new house is an old one. (expensive) 2. Motorbikes are bicycles. (fast) 3. My television is his television. (modern) 4. Summer is Spring. (hot) 5. Jane is her sister. (beautiful) 6. Skirts are dresses. (cheap) 7. Her English is my English. (good) 8. A bicycle is often a car in busy cities. (convenient) 9. Nile River is river in the world. (long) 10.This book is of these books. (interesting) 11.Ho Chi Minh City is city in Viet Nam. (big) 12.They are students in my class. (good) 13 These house are in the village. (beautiful) 14.Winter is season in the year. (cold) 15.Airplane is means of transport. (fast) 16.He is person in the meeting. (important) IV. Using the words in the box to complete the dialogue and answer the questions below. Minh: Tell me about your family, Nam. How (1) people are there in your family? Nam: There are five. My father, my mother, two sisters (2) I. Minh: What does your father do? Nam: He’s a dentist. He works in a hospital. He takes care of (3) teeth. Minh: What about your mother? Is she a dentist, (4) ? Nam: No. My mother is a teacher. She teaches in the primary school (5) my house. Minh: What do your sisters do? Nam: My (6) sister Ngoc is a painter. She works in a studio. She paints very well. And Nga, my youngest sister, is a student She is in (7) 4. Minh: Oh. (8) a happy family! Do you love your family? Nam: Sure. I love my family very much. 1. What does Nam’s father do? ....................................................................................................................... 2. Where does he work? ....................................................................................................................... 3. What is his mother’s job? ....................................................................................................................... 4. Where does she teach? ....................................................................................................................... 5. What do Ngoc and Nga do? ....................................................................................................................... 6. Who is older: Nam or Ngoc? ....................................................................................................................... 7. Who is the youngest member in Nam’s family? ....................................................................................................................... 8. Does Nam love his family? .......................................................................................................................

viết một đoạn văn ngắn nêu cảm nhận của em về vẻ đẹp và sức sống tiếng Việt của dân tộc ta

Hộ 2 câu này với ạ mình cho 5 vote

Mn ơi giải giúp mk vs -Đặt hai câu có phó từ đứng trc và hai câu có phó từ đứng sau động từ hoặc tính từ. -Đặt ba câu có hai phó từ đi liền nhau trc động từ.

Giup mik câu 2b với ạ ( mik cần gấp) Thanks nhìu ạ

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