Giai hiup em voi organisers of the camp insisted on me getting a first-aid certificate first.,When I arrived at the community centre in the morning, I met the other five people on the course. Then, Anna,,trainer, walked in. (20) _____ herself, she began the course by telling us why first-aid was so importan,Clearly, she felt that it was something that everyone should know.,Then it was down to work! We started by learning how to (21) _____ a wound so that it doesn't get infected,and how to put on a bandage. Next, Anna taught us how to treat some sports injuries like sprained ankles and she,also showed us how to use some basic first-aid equipment. I learned how to use a sphygmomanometer, a machine,that measures a person's blood (22) _____. I just hope I don't have to spell its name correctly on the test!,Tomorrow, we're going to learn about emergency first aid, like how to help a person (23) _____ a heart,attack. Then, next week, we have to come back to do a short test before we can get a certificate. It's just a two-day,course, so I'm only going to learn a few things, (24) _____ I? However, I'm already thinking about doing a,longer first-aid course later this year.,20. A. Introduced B. Introducing C. To introduce D. Having introduced,21. A. wash B. clean C. cure D. clear,22. A. pressure B. swelling C. infection D. disease,23. A. has B. had C. having D. has had,24. A. am B. do C. aren't D. don't,Read the passage and choose the correct answer for each question.,The wheel on your little brother's favourite toy car has broken, and he's very upset. You're not worried, though.,You just take some pictures, load them into your 3D printer and in short time, the new part is sitting in your hand.,3D printers are machines that print objects. Believe it or not, the first 3D printer was invented way back in 1984,,and in 1993, the first 3D printing company was set up! Since 2004,3D printers have reached a price and size that,allows almost anybody to own one, and in 2018, over half a million were sold.,3D printers work in a similar way to the old computer printer, which shot tiny jets of ink onto paper to make,words. Instead of ink, however, 3D printers shoot plastic, metal, wax or another material that hardens instantly. By,adding thousands of layers,the 3D shape is slowly made.,People are using their 3D printers to make any object you can imagine, from jewellery to beautiful ornaments.,Sports companies are using them to make boots and trainers that perfectly fit athletes' feet. But 3D printers can,have a more serious use-one that might save your lifel Doctors are using them to create medical implants. for,example bones and joints that exactly match the patients. This makes surgery easier and recovery faster.,3D printers are developing all the time, and are becoming the piece of technology every home should have. And,soon, who knows-you might be able to print one yourself.,25. 3D printers became something many people could afford in _____.,A. 1984 B. 1993 C. 2004 D. 2018,26. 3D printers do NOT use _____ to make objects.,A. ink B. plastic C. wax D. metal,27. Medical implants help patients _____.,A. get well more quickly B. avoid an operation C. find a good doctor D. with foot problems,28.There are _____ 3D printers sold in 2018.,A. half a million B. over half a million C. about half a million D. under half a million,29. The author's purpose in the text is _____.,A. to warn about the dangers of 3D printers,B. to explainthe uses of 3D printers in medicine,C. to describe the development of a piece of technology and its uses,D. to list the benefits of a brand-new

Question

Giai hiup em voi organisers of the camp insisted on me getting a first-aid certificate first.,When I arrived at the community centre in the morning, I met the other five people on the course. Then, Anna,,trainer, walked in. (20) _____ herself, she began the course by telling us why first-aid was so importan,Clearly, she felt that it was something that everyone should know.,Then it was down to work! We started by learning how to (21) _____ a wound so that it doesn&#x27;t get infected,and how to put on a bandage. Next, Anna taught us how to treat some sports injuries like sprained ankles and she,also showed us how to use some basic first-aid equipment. I learned how to use a sphygmomanometer, a machine,that measures a person&#x27;s blood (22) _____. I just hope I don&#x27;t have to spell its name correctly on the test!,Tomorrow, we&#x27;re going to learn about emergency first aid, like how to help a person (23) _____ a heart,attack. Then, next week, we have to come back to do a short test before we can get a certificate. It&#x27;s just a two-day,course, so I&#x27;m only going to learn a few things, (24) _____ I? However, I&#x27;m already thinking about doing a,longer first-aid course later this year.,20. A. Introduced B. Introducing C. To introduce D. Having introduced,21. A. wash B. clean C. cure D. clear,22. A. pressure B. swelling C. infection D. disease,23. A. has B. had C. having D. has had,24. A. am B. do C. aren&#x27;t D. don&#x27;t,Read the passage and choose the correct answer for each question.,The wheel on your little brother&#x27;s favourite toy car has broken, and he&#x27;s very upset. You&#x27;re not worried, though.,You just take some pictures, load them into your 3D printer and in short time, the new part is sitting in your hand.,3D printers are machines that print objects. Believe it or not, the first 3D printer was invented way back in 1984,,and in 1993, the first 3D printing company was set up! Since 2004,3D printers have reached a price and size that,allows almost anybody to own one, and in 2018, over half a million were sold.,3D printers work in a similar way to the old computer printer, which shot tiny jets of ink onto paper to make,words. Instead of ink, however, 3D printers shoot plastic, metal, wax or another material that hardens instantly. By,adding thousands of layers,the 3D shape is slowly made.,People are using their 3D printers to make any object you can imagine, from jewellery to beautiful ornaments.,Sports companies are using them to make boots and trainers that perfectly fit athletes&#x27; feet. But 3D printers can,have a more serious use-one that might save your lifel Doctors are using them to create medical implants. for,example bones and joints that exactly match the patients. This makes surgery easier and recovery faster.,3D printers are developing all the time, and are becoming the piece of technology every home should have. And,soon, who knows-you might be able to print one yourself.,25. 3D printers became something many people could afford in _____.,A. 1984 B. 1993 C. 2004 D. 2018,26. 3D printers do NOT use _____ to make objects.,A. ink B. plastic C. wax D. metal,27. Medical implants help patients _____.,A. get well more quickly B. avoid an operation C. find a good doctor D. with foot problems,28.There are _____ 3D printers sold in 2018.,A. half a million B. over half a million C. about half a million D. under half a million,29. The author&#x27;s purpose in the text is _____.,A. to warn about the dangers of 3D printers,B. to explainthe uses of 3D printers in medicine,C. to describe the development of a piece of technology and its uses,D. to list the benefits of a brand-new

Hoài An · Accepted Answer

{"userId": 5316875, "userName": "Kim Phượng "}20.a

Timi · Answer

20. A. Introduced 
21. A. clean 
22. A. pressure 
23. D. have 
24. D. don&#x27;t

25. C. 2004
26. A. ink
27. A. get well more quickly
28. B. over half a million
29. C. to describe the development of a piece of technology and its uses