Giúp mình vs ạ mình xin cảm ơn trc ạ

X thuộc BC (12;25;30) và 0 <x <500

Giải giúp mình với aj. Mình cảm ơn

VV Be aware of the importance of the en We must be aware the importance of the environ We must be aware of importance of the environn we / now/faced/ problem/ deforestation. We are now faced with problem of deforestation We are now faced with the problem of deforestat We now faced with the problem of deforestation We now faced with problem of deforestation. erosion/result/when/ forests / cut/carelessly Soil erosion result when forests are cut down can Soil erosion results when forests cut carelessly. foil erosion results when forests are cut down ca

em có đồng tình với quan niệm của tác giả :" Học là việc cả đời, chẳng bao giờ kết thúc, ngay cả khi bạn đã đạt được nhiều bằng cấp." Vì sao

VII. Put the verbs into the correct form. Use Present Simple. 1. They ______________ (play) football and basketball at school. 2. My father ______________ (read) the newspaper every morning. 3. We ______________ (have) English, Maths and Science on Monday. 4. She never ______________(do) her homework. 5. I ______________ (go) swimming twice a week. 6. Cars ______________ (be) more expensive than motorbikes. 7. Jane always ______________ (have) breakfast at 6 o’clock. 8 He usually ______________ (watch) TV after dinner. 9. London ______________ (be) a very big country. 10. I ______________ (be) a student and my parents ______________ (be) teachers. . XI. Complete the sentence with the negative form of the present continuous. Use short forms. 1. They ________________ (help) the teacher right now. 2. She ________________ (stay) in a hotel. 3. I ________________ (travel) a lot these days. 4. We ________________ (study) science at present. 5. The children ________________ (play) football in the playground. 6. Bob ________________ (watch) the news on TV. 7. My parents ________________ (talk) to the teacher at the moment. 8. The sun ________________ (shine) today. XII. Complete the sentence with the present simple or present progressive form of the verb in brackets. 1. I ________________ (look) for Jack. Do you know where he is? 2. You ________________ (know) a lot about computers. 3. They ________________ (do) maths homework now. 4. Mark often ________________ (play) tennis at the weekend. 5. Just a minute, I can’t hear you. I ________________ (listen) to the radio. 6. Bob ________________ (watch) the news on TV every morning. 7. Be quiet! The children ________________ (study) in the room. 8. Mark ________________ (not do) homework on Saturdays. 9. Wake up! The teacher ________________ (ask) you a question. 10. We ________________ (not work) at the moment. We’re on a break. XIII. Complete the sentences with the question words. 1. does the first lesson begin? - At seven o’clock. 2. are you going? - To the library. 3. do you usually bring to school? - Textbooks, notebooks and pens. 4. do you go to school? - By bike. 5. is Mary talking to? - Mrs. Berry, her English teacher. 6. is your favorite subject? - Maths. 7. is your first day at school? - Oh, it’s great. 8. does Phong do judo? - Three times a week. 9. students are there in your class? - Forty. 10. pocket money do you get? - Ten thousand dong. D. READING I. Fill in each gap with a word from the box. Middle school often includes sixth, seventh, eighth and ninth (1) ____________. It’s calledmiddle school because it’s in the middle of your (2) ____________ years. Elementary school is behind you. High school (3) ____________ awaits you. For a kid, going to middle school is often a (4) ____________ change: First, it usually means moving to a new building, which takes some time to adjust to. (5) ____________, it may mean taking a different bus, with different students. Third, the friends you made in (6) ____________ school may end up going to different middle schools. And other things that probably will be different are the (7) ____________ and the work. All of that can make you feel a bit (8) ____________ on the first day of school. E. WRITING I. Put the words in order to make a sentence. 1. secondary/ first/ your/ at/ school/ is/ how/ week? 2. lessons/ many/ have/ on/ how/ you/ do/ Friday? 3. art/ creative/ are/ drawings/ students/ the/ some/ doing/ in/ club 4. school/ at/ English/ we/ have/ classes/ don’t/ today 5. homework/ you/ doing/ maths/ are/ your? 6. children/ first/ on/ most/ school/ excited/ are/ day/ of/ the II. Complete the second sentence so that it has the same meaning as the first. 1. What is your favorite subject? → What subject 2. There are 35 students in my class. → My class 3. Mai live near her school. → Mai’s house isn’t 4. Mary plays the piano very well. → Mary is good 5. Do you like physics? → Are you interested 6. The school has a computer room and a library. → There

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Cho tam giác ABC có B=2C. Vẽ AH vuông góc với BC. Gọi M là trung điểm của AC. Đường thẳng MH cắt đường thẳng AB tại N. CMR: BN=BH

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