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(6) the principal planes, (b) the principal stresses, (c) the maximum shearing 6.150 Knowing that the diameter of the steel rod ABD is 30 mm, determine the stress, at point H. E 25 mm 125 mm A H 200 mm B 2 kN 225 Imm 150 mm Fig. P6.150

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Exercise 3 Supplement Directions: Circle the correct pronouns. The little boy hid in the shadows until the riders and their horses passed by. 1 (He /She) wondered who 2 (they / we) were. The white robes they wore made 3 (them/us) look like ghost riders. A cold feeling of fear caused 4 (him / them) to shiver. He stumbled on in the darkness. A small flicker of light caught his eye. 5 (He / It) seemed to be some distance away. He drew nearer and suddenly stopped when he heard voices. Several men, Covered completely in white, were talking to someone who was tied up. The boy recognised the men. 6 (He / They) had passed him earlier on horseback. 7 (He / We) tried to catch what they were saying. " . and 8 (he / we) are going to give 9 (him /you) one more chance to answer 10 (her / us), You'll die if you don't talk." The boy realised that he had to act quickly if he wanted to save the prisoner.

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Put the verbs in brackets into the correct past 2 tense to complete the short dialogues. 1 A: How was (be) your holiday in Spain? B: Great, thanks. I had (have) a fantastic time . (you/do) when the phone ..N22.riทดูทg. (ring)) (wash) my hair (not hear) it. (surf) the Net when (find) a great deal on Nas you doing 5 2 A: What พached did ทt hear B: 1 and 1 3 A: Tony Surted he a trip to Paris. told B: I know, but by the time he (tell) me about it had alreo.dy book (already/ book) my holiday to Berlin. 4 A: How did yew mis(you/miss) your flight? B: We ..hopped (shop) in the 4 id + hear. duty free shop and we (not/hear) the announcement. 5 A: 4 yoy...5ไay . (you/stay) in a hotel during your holiday? B: No. We .Yenied apartment for two weeks. 6 A: Why was Steve so angry? (rent) an B: 1 guess it was because he had been พiting (wait) for three hours before his flight was announced. โ๒๐ked . (look) exhausted 7 A: Jane . when I saw her. B. She Adnt ep ( She had wai ted (not/sleep) at all. (wait) all night long for her family to arrive.

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Exercise 3 Required Directions: Complete the sentences with the simple past or the present perfect. 1. I (attend, not) any orientation sessions since I came here. 2. Pond (go) to a party at Tina's dorm last Saturday night. 3. Anna (arrive) here three days ago. 4. Anna (is) here since the 22nd 5. Try not to be absent from class again for the rest of the term. You (miss, already) too many classes. You (miss) two classes last week. 6. This is the first time I (ride) a horse. 7. Thanakorn (download, never) any pirated movies. 8. I (know) Sheldon Cooper for ten years. 9. A: Is Leonard here? B: No. He (arrive, yet) 10. The director really needs to get in touch with you. Since this morning, he (call) three times. He (call) at 9.30, 11.30, and 1.30.

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A CONJUNCTION is a joiner, a word that connects (conjoins) parts of a sentence. (onjunctions and - but or - S0 - because - therefore if - although - even though - however in spite of - nevertheless - still - moreover - and but still hecauะ which Here are the conjunctions 1. My sister I will go there next week. you need to write on the 2. Ilike you -you are so kind to empty linesะ me. however 3. Peter turns back at me chuckles. 4. Would you like a Coca-Cola เa Fanta? and 1 5. She broke her leg. she managed to walk 20 kilometers. although 6. He is not well today. he is not going to show up. or 7. -you ever come to Denmark, I really want you to visit me. because 8. the fact that she scared of snakes, she plans but to go to Australia for her next holiday. 9. This is a very nice shirt, also very expensive. unless 10.T have more than 2500 tracks on my iPod, time to listen to any of them. Inever have therefore in spite of 11. เbeing here isn't bad after all. and 12. She is fond of travelling.. on travelling for her birthday. she always wants books nor 13. Why do ask?, -you sound as if you are bored! if 14.I don't want to be late for school,. Ireally have to go now. therefore 15.llove chocolate,. Tknow it isn't good for me. but 16. They decided to geta dog. their son is allergic to animals. although 17. He is neither rich poor. anyway 18.John is agood skier,. . _he prefers to play hockey. yet 19. we do something about it today, it will all be lost. of course 20. he trusts you. Has he reasons not to? So because เSLCollective.com

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Exercise i Complete the sentences using wilf" or "be going to" A: Can you type this letter for me, please? B: Sure. I (do) it as soon as I've finished this report. A: Dad, the kitchen tap doesnt work properly. B: Yes, I noticed that this morning, and I brought a few tools with me from work. 1 (repair) it after dinner. A: We have a tot of bookings tonight! We (get) B: Don't worry. Ive just phoned Tom and Brian, They (come) with clearing out the mess. home very iate again. to help us A: Do you fike chii and rice? B: I'm not too keen on very spicy food. A: I (make) SCme with just a pinch of chili powder for yoน then. A: I don't think I (have) time to fetch Britney's birthday cake this afternoon. B: Don't worry. 1 (do) it on my way back from work. 1 3 .

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Choicesะ a. on b. with C. up d. in e. across f. off 6. of h. for 1. Over j. at k. by 1. from m. to 1. 1 think the attendant was jนst piaying a tmck Matin. 2. ls there anything wrong พour new television set ? 3. 1"utn the radio 4 little, I can Scarcely hear the programme. 4. my opinion, every student is eqุuat. 5. It is surprising that the government succeed Solving that problem. (5. We Congratulated the winner his Success. 7. Lopking for a nty bo)k in the fihrary. } came an old forgotten research. 8. Wher) (ne fails : hay his bill, the company cut his electricity. 9 She is s) tired her life that she wants to commit suicide. 10. Do you know wh) หll be blamed the mistalke ? 11. ! rเรก arI old friend of mine the other day at tlหe grocer's. 12. 1e g:ts tup fatc the morming and ics trs bed vpry late ight. 13. They met their friends the corner the street six o'clock yesterday. 14. present many peopie die 15, She was born 1960 and went to school the age of five. 16. James g(es to school his father's car but Paul goes ioot. 17. The trairn leaving Chiengmai is at the railway station. 18. Today many people come to Bangkok husiness and holiday. 19. Thailand, cloth is usually sold meter. 20. The old lady has taken my umbrella mistalke, in the directory. will be pleased mc.

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เกิดไรขันกังสั้งแวดล้อมyo) (งา แปลว่า ด ทับ What is happening to.the Environment? Rivers mพัยใหม่ A new study shows that 86 per สะพวณขัมแม่น้ำเทพ cent of the world's rivers have been damaged by human activity. The study was Conducted by researchers from a university in Toulouse, France. เคทะน์ They examined data on over 2,500 rivers around the world)but they did not Look at rivers in the polar regions of the Arctic and Antarctica or in deserts.)The scientists looked into changes to biodiversity over the past 200 years. They)discovered that biodiversity in over half of rivers has been seriously damaged by humans. The researchers said there were many reasons for this damage. A big reason is the introduction of new species of fish into rivers. Other reasons include polution, dams, overfishing, farming and ปลก) : อ่างๆ mราะน climate change. The researchers say the worst-hit rivers are in western Europe and North America. This is because these regions have large and rich towns and cities. The เมือที่มาฐานางเบ lead researcher said: "Rivers which have the most economic development around ่"ง them, like the Mississippi River, are the most strongly impacted." The River Thames inj London was one of the worst-affected rivers in the study. The least- impacted rivers are in Africa and Australia. The researcher said: "This is probably due to a slower rate of สูคนที่ 90 191 เสชมา ความ นนา Iณนนยฆาก industrialisation in Africa and low population density around rivers in Australia." He added that rivers in many rich nations are unrecognisable compared with how they were 200 years ago. เลวมาก เลวที่สุด / HgrSe / the Nor s t 3/ be tey / the st ดีมา ก ดที่สด Acknowledgement

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Read the sentences. Replace get with one of these verbs in the correct form. 2 arive become buy bring receive walk Hurry up! We won't get to School on time! Hurry up! We won't arrive at school on time! 2| think adventure vacations are getting more dangerous. 3 When you book a flight online, you get the tickets in an email. rom 2B me 4 She got a lot of new clothes for her vacation. 5 Can you get the guidebook? I left it in my bag. 6 Someone checked our passports before we got onto the plane. 3 What would you say in these situations? Make a question or a sentence with get. 1 You like your friend's new bag. You want to know where she bought it. Where did yoน get your bag? 2 You sent your friend a text message. You want to know if he received it. Did you . ? 3 You see your friends at a party. You ask them what time they arrived. When . ? 4 You are at a train station with a friend. Your train hasร arrived. Come on. Lets . 5 Your mother has left her jacket upstairs. You offer to bring it to her. Don't worry. I'I|....

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What moabos people Successน bte s Who do you think is the most successful? Who do you think is the least Successful? In order to answer these questions, we first need to define success. Everyone has a different definition. Many of us place great value on performance, on achievements, or on Others goals. SUCSS reaching various associate success with material goods, measuring it by how much one can acquire. Others measure success by how much they can contribute to the well-being of their families, or to the community and society in general There are many other definitions, but mostly success is associated with becoming rich, famous, and respected at work. Yet, it doesnt have to be that way. Being successful could mean simply being satisfied with oneself and one's career. For many people, a successful person is someone who feels that his or her work and life in general offer an exceptionally high degree of satisfactions. But how does one get from here to there? How does one reach this feeling of satisfaction with life and career? It seems that successful people consistently do two things: * They use their natural abilities in their work. * They set career and life goals. In other words, successfuนl people choose careers where they can use their natural abilities, or do what comes naturally to them. For example, successful teachers are people who instinctively know how to help people learn, and the best doctors are those who know how to listen to people. Successful people know where they are starting from, and what direction they want to give their lives and careers, even if it is something as simple and wonderful as raising a happy family. What are your natural abilities? What are your career and life goals? If you can answer these questions, you are on your way to having a Successful career and life.