COMPLETE THE EXERCISE WITH IF OR UNLESS. 1. _______________ you drive more carefully, you will have an accident. 2. _______________ you prune these trees, they won’t grow well. 3. He’ll get lost _______________ someone shows him the way. 4. _______________ you practice your Russian, you can improve it quickly. 5. _______________ you don’t hurry, you’ll be late for school again. 6. _______________ there is oxygen, fire cannot burn. 7. _______________ you go to bed late, you’ll feel tired in the morning. 8. My parents will be angry _______________ I pass my exams. 9. You can’t travel abroad _______________ you don’t have a passport. 10. You can’t watch TV _______________ you finish your homework. 11. _______________ they lower the price, I won’t buy that computer. 1. We cannot go sailing _______________ the rain stops. 2. I won't talk to her _______________ she apologizes to me. 3. You won't be able to find the house _______________ you get help from your GPS. 4. I won't go _______________ he is going. 5. _______________ we don’t take the necessary measures now, we may have serious problems later. 6. _______________ you don't take notes you will have hard time studying later. 7. She must have graduated already, _______________ she failed a class. 8. Jason is always cheerful _______________ something really bad happens. 9. I will never forgive you _______________ you tell him the truth. 10. You are not allowed into the casino _______________ you are under 21 years old. 11. My mother will cook _______________ they decide to eat out. 12. I should be there by 11 o'clock _______________ I don't catch any traffic. 13. I should be there by 11 o'clock _______________ I catch a lot of traffic. 14. The show should start at 9:30 _______________ they changed the schedule.

cho hcn ABCD ,(AB<AC) kẻ BH vuông góc với AC tại H,MA=MH,NC=ND,PB=PH.CM:a)AB=4cm;MP=?,b)CM:tg MPCN là hbh c)góc BMN=?;CM:AB^2=AH×AC

COMPLETE THE EXERCISE WITH IF OR UNLESS. 13. I should be there by 11 o'clock _______________ I catch a lot of traffic. 14. The show should start at 9:30 _______________ they changed the schedule. 15. _______________ they behave, those children are not welcome here. 16. _______________ you help me, I'll be unable to do it . 17. _______________ I meet him, I'll tell him the whole truth. 18. You won't get well _______________ you stop smoking. 19. _______________ you exercise regularly, you won't be able to lose some weight. 20. _______________ you exercise regularly, you'll lose some weight. 21. The teacher will be furious _______________ you don't the homework. 22. You can't go on vacation _______________ you don't save some money. 23. You will feel cold _______________ you wear a warm jacket. 24. We'll arrive on time _______________ we hurry. 25. Don't call me _______________ it's an emergency.

Complete the following sentences with the words in brackets. 27. A: Let's see. If I _______________ (have) a different family, I _______________ (not grow up) here in Baileyville. B: And if you _______________ (not grow up) here, I _______________ (not meet) you. 28. A: You just don't study enough. If you _______________ (study) more, you _______________ (pass) this course easily this semester. A: That's easy for you to say. You always get A's. 29. If I _______________(be) you, I _______________ (try) to do better on the next test. 30. We _______________enough time if we wanted to see the castle. (have) 31. If you _______________a car, will you teach me to drive? (buy) 32. She _______________angry if you had told her. (get) 33. If they _______________our product when we asked them, they would get a discount now. (support) 34. Even if I _______________him, he won't come. (ask) 35. It will be a disaster unless Joyce _______________us. (help) 36. If you _______________something to eat in the morning, you wouldn't feel sick now. (have) 37. I wouldn't risk it if I _______________you. (be) 38. The chicken isn't very good. It _______________better if you had put some spices on it. (taste) 39. I won't go to the dance unless you _______________me. (join) 40. If the hotel in Paris had been full, we _______________somewhere else. (stay) 41. If I got the job, I _______________grateful to you. (be) 42. Unless she _______________the test she will get her driving licence next week. (fail) 43. How would you explain the meaning of this word if you _______________it? (not know) 44. We _______________angry if you had refused the dinner. (not be) 45. If I were you, I _______________it. (not take) 46. If Ken _______________the car, who will do it? (not mend) 47. If I _______________in a hurry when I got up, I wouldn't catch the train. (not be) 48. She won't finish it on time if she _______________right now. (not start) 49. Had I driven slowly, I _______________. (not crash) 50. She would get fat if she _______________eating. (not stop) 51. Had he not let me know, I _______________him at the airport tomorrow morning. (not collect)

Tìm x biết: 1/3+1/6=1/10+.....+2/x(x+1)=2016/2017

Complete the following sentences with the words in brackets. 1. If it doesn't _______________ (rain), plants cannot grow. 2. If I _______________ (try) to cook, I ruin the food. 3. If you smoke, your skin _______________ (age) more quickly. 4. If you heat ice, it _______________ (melt). 5. I feel good if you _______________ (visit) me regularly. 6. Water evaporates if you _______________ (boil) it. 7. Deren _______________ (cycle) to work if the weather is good. 8. I feel sick if I _______________ (eat) too much chocolate. 9. You need to take my sister to the hospital if she _______________ (drink) milk as she is allergic to it. 10. If Andy _______________ (go) to bed late, he cannot wake up early. 11. If I don't do my homework, my teacher _______________ (get) angry. 12. If I _______________ (be) taller, I _______________ (join) in NBA when I was young. 13. Do you think you _______________ (be) happier now if you (be) someone else. 14. Lucas _______________ (be) in Los Angeles now if he _______________ (take) the flight yesterday. 15. The teacher _______________ (be) so angry now if you _______________ (forget) your homework at home. 16. If you _______________ (go) your office early, you _______________ (be) with us now. 17. I cannot _______________ (see) well if I don't have my glasses. 18. If you study hard enough, you _______________ (get) very good grades. 19. If somebody makes noise in the library, our teacher _______________ (punish) them. 20. If I miss the bus, I _______________ (take) a cab. 21. Coffee _______________ (taste) better if you add sugar. 22. You should _______________ (eat) less if you want to lose weight. 23. I always take my umbrella with me if it _______________ (rain). 24. If you _______________ (press) that button, the car starts. 25. If you _______________ (break) anything, you pay for it. 26. A: We had a great time at Drew's house Sunday. Why didn't you come? B: I had to study for Spanish. A: If you _______________ (come) with us, you _______________ (see) an awesome movie.

a) Không quy đồng hãy tính hợp lí các tổng sau: A=5/2*1+4/1*11+3/11*2+1/2*15+13/15*4

Complete the following sentences with the words in brackets. 28. If you (move) _______________ to the UK you would have to learn to speak English. 29. She (not/buy) _______________ it if she didn’t think she needed it. 30. The salad (taste) _______________ better if you added some garlic. 31. We (grow) _______________ our own vegetables if we had a garden. 32. What will you do if the boat (sink) _______________ . 33. When the sun (shine) _______________ I like to lie on the beach. 34. If I _______________ (have) a yacht, I would sail around the world. 35. If David _______________ (be) taller, he could even play in NBA. 36. If you _______________ (be) eighteen years old, you could drive a car. 37. Would you teach me if you _______________ (know) how to ride a bike? 38. If I _______________ (see) a spider, I would scream. 39. If Andrew _______________ (win) the lottery, he would buy a big house for us. 40. I would be so pleased if Jessica _______________ (come) to my party. 41. If Danny really _______________ (love) you, he wouldn't break your heart all the time. 42. Robin could lead a healthier life if she _______________ (give up) smoking. 43. If I _______________ (be) in your shoes, I would change my car. 44. If Pamela _______________ (have) a job, she would be so happy. 45. If he _______________ (speak) more clearly, I would be able to understand him. 46. What would you _______________ (do) if there was a fire at your house? 47. If drivers _______________ (obey) the traffic rules, there would be fewer accidents. 48. If Samantha _______________ (eat) healthier food, she wouldn't have to be on a diet. 49. I would _______________ (make) a delicious sandwich if you were hungry. 50. If I _______________ (know) your phone number, I would call you. 51. How would you feel if you _______________ (lose) your job? 52. If Thomas _______________ (propose) to me, I would say yes at once. 53. If she _______________ (apologize) to me, I would forgive her.

Đọc văn bản sau và trả lời các câu hỏi: Của ong bướm này đây tuần tháng mật; Này đây hoa của đồng nội xanh rì; Này đây lá của cành tơ phơ phất; Của yến anh này đây khúc tình si; Và này đây ánh sáng chớp hàng mi, Mỗi sáng sớm, thần Vui hằng gõ cửa; Tháng giêng ngon như một cặp môi gần; Tôi sung sướng. Nhưng vội vàng một nửa: Tôi không chờ nắng hạ mới hoai xuân. 1. Đoạn trích sử dụng phương thức biểu đạt nào? 2. Nếu phong cách ngôn ngữ của đoạn trích? 3. Các kiểu câu phân loại theo mục đích nói có trong đoạn trích? 4. Nội dung của đoạn trích? 5. Chỉ ra một biện pháp nghệ thuật được sử dụng trong đoạn trích? Nêu tác dụng của bpnt 6. Chỉ ra các thành phần nghĩa của câu thơ đó? sau: Tháng giêng ngon như một cặp môi gần. II. LÀM VĂN: Cái mới của thơ Xuân Diệu qua đoạn trích: “...Của ong bướm này đây tuần tháng Tháng giêng ngon như một cặp môi mật gần."

b) Tìm x thuộc N, biết: x-20/11*13-20/13*15-20/15*17-...-20/53*55=3/11