Một xe lửa cần vận chuyển một lượng hàng.Người lái xe tính rằng nếu xếp mỗi toa 15 tấn hàng thì còn thừa lại 5 tấn, còn nếu xếp mỗi toa 16 tấn thì có thể chở thêm 3 tấn nữa. Hỏi xe lửa có mấy toa và phải chở bao nhiêu tấn hàng

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Big Ben, the nickname for the bell inside the Elizabeth Tower of Parliament, will ring for the final time next Monday (August 21) at midday ahead of four-years of extensive (1) ....................... works. The decision was taken to (2) ....................... ringing the bell (3)....................... protect the hearing of those working on cleaning and repairing the clock. And while Londoners will miss the familiar chimes of Big Ben on a (4) ....................... basis, the bell will only ring for special (5) ......................., including the city’s New Year celebrations and Remembrance Sunday. Steve Jaggs, (6) ....................... as Keeper of the Great Clock (a pretty great job title we’re sure you’ll agree), told BBC News that the renovation works are “essential” and will “safeguard the clock on a (7) ....................... basis.” Over the next four years, the Elizabeth Tower will be modernized with a lift and will be made more energy-efficient. The clock face will be briefly taken apart for cleaning and repairing, but will, (8) ......................., continue to tell the time correctly. 1. A. renew B. reborn C. innovation D. renovation 2. A. pause B. stop C. put off D. delay 3. A. so as to B. in order to C. to D. all are correct 4. A. hourly B. daily C. monthly D. yearly 5. A. time B. even C. occasions D. event 6. A. such B. known C. heard D. called 7. A. long-term B. long C. short-term D. short 8. A. otherwise B. therefore C. instead D. unless II. Find the word which has a different sound in the underlined part. 9. A. station B. intersection C. question D. invitation 10. A. teacher B. children C. lunch D. chemist