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saothao71
2 năm trước
Một khu vườn có chiều dài hơn chiêù rộng 6m. Nếu tăng chiều rộng thêm 4m và giảm chiều dài 2m thì diện tích tăng 4m2. Hỏi diện tích ban đầu của khu vườn là bao nhiêu ?
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Các câu hỏi liên quan

A) Write what the underlined word is; adjective or adverb: 1. Fast runners win races. … adjective … 2. Mathematics is difficult. ……………………. 3. She’s a good typist. ……………………. 4. She behaved rudely to her boss. …………………. 5. You’ve done well in your test. ……………. 6. The clowns are very funny. ………………. 7. She’s a pretty girl. ………………. 8. He runs fast. ………………. 9. Ann is very sad. ………………. 10. She plays the piano beautifully. …………………. 11. Father is very busy in his office. .……………… 12. The doctor arrived immediately. ………………… B) Underline the correct item: 1. He left the room quiet / quietly. 2. Jane works hard / hardly. 3. He’s a very nice / nicely man. 4. The sun is shining bright / brightly. 5. Smoking is bad / badly for your health. 6. She behaves very good / well. 7. He always dresses smart / smartly. 8. He shouted angry / angrily at me. 9. This chair is comfortable / comfortably. 10. He smiled sad / sadly. 11. You drive very slow / slowly. C) Complete these sentences: 1. There was some heavy rain last night. Yes, it rained very ….. heavily. ……… 2. Aren’t the children quiet!Yes, they’re working very ……………… 3. James has a loud voice.Yes, he always talks very ………………… 4. Isn’t the teacher angry!Yes, he’s shouting very …………………… 5. Angela’s very happy today!Yes, she’s laughing very ……………… 6. The telephone rang in the middle of the night. Nick was very sleepy. He answered it very …………………… 7. Kate likes playing slow music.Yes, she’s playing this piece very ……… D) Complete the sentence with the correct word from the brackets: Example: Mice move …. quietly … (quiet / quietly) 1. This exercise is ……………… (easy / easily) 2. These people are speaking ……………….. (quiet / quietly) 3. Mr. Brown can speak English ……………. (good / well) 4. Tigers are ……………… animals. (brave / bravely) 5. The footballer is ……………. (tired / tiredly) 6. Cheetahs run ………………. (quick / quickly) 7. She is lifting the weight ………………… (easy / easily) 8. The children are playing ………………… (happy / happily) 9. Tony is a ……………….. skier. (good / well) E) Supply the proper form, ADJECTIVE or ADVERB: 1. He always does his homework ………………………….. (careful). 2. He is a very …………………… (careful) student. 3. Come ………………… (quick). We need your help. 4. You should drive more ………………… (slow) along this road. 5. The old man walks very ……………….. (slow). 6. Helen is a very ……………………. (slow) student. 7. Her brother, on the other hand, learns …………………… (rapid). 8. Mr. Gonzales has a ………………………. (permanent) visa. 9. He hopes to remain in this country ………………….. (permanent). 10. This is an …………………… (easy) exercise. 11. I can do all of these exercises ……………… (easy). 12. Helen works very ……………… (hard) in her new job. 13. You walk very …………………… (fast). 14. They are both ……………. (serious) students. 15. They both study English very …………………… (serious). 16. I agree with you ……………………. (complete) in that matter. 17. This apple is very ………………. (soft). 18. She always speaks ……………. (soft) to the child. 19. Helen is a …………………….. (beautiful) girl. 20. Her sister plays the violin ……………… (beautiful).

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