ai đúng mik vote 5 sao nhe!!! Một phân xưởng xếp loại công nhân theo hai mức A và B. Đầu năm, số công nhân loại A bằng 2/7 số công nhân loại B. Đến cuối năm có 5 công nhân loại B được lên thành loại A nên số công nhân loại A bằng một nửa số công nhân loại B. Tính tổng số công nhân của phân xưởng đó.

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V. Choose the best answers. 1. Some of famous in Southern Viet Nam are Hu Tieu Nam Vang , Bun Mam, fried rice, flour cake and many kinds of pudding A. stapes B. ingredients C. foods D. dishes 2. Beet greens are the most .part of the vegetable and can be cooked like any other dark leafy green. A. traditional B. careful C. colourful D. nutritious 3. It is boring here. .ever happens in this place. A. Anything B. Something C. Things D. Nothing 4. Moderation doesnt mean.the foods you love. A. to prevent B. preventing C. to eliminate D. eliminating 5. You should eat more fruits and vegetables if you .to lose weight. A. would want B. wanted C. will want D. want 6. When we were on holiday, we spend too .money. A. a lot of B. many C. much D. lots of 7. If people work so much, they .depressed and eat more. A. may feel B. may have felt C. felt D. had felt 8. Studies suggest ..only when you are most active and giving your digestive system a long break each day. A. eating B. being eating C. to eat D. being eaten 9. There ___________ at the door. A. is somebody B. is anybody C. is everybody D. isnt nobody 10. Perhaps the three most popular ice cream.are vanilla, chocolate and strawberry. A. offers B. flavours C. brands D. ingredients 11. I spend my spare time gardening. A. most B. the most of C. most of D. most of the 12. Your body uses calcium to build healthy bones and teeth, ..them strong as your age. A. continue B. keep C. remain D. care 13. Food in Northern Viet nam is not as ..as that in Central and Southern Viet nam , as black pepper is often used rather than chilies. A. spicy B. exciting C. strong D. flavour 14. Pumpkin soup is a good source of , minerals and vitamins, especially vitamin A. A. fibres B. fats C. sugar D. solids 15. Theres .use in complaining. They probably wont do anything about it. A. a few B. a little C. no D. some 16. If you eat too quickly you may not ..attention to whether your hunger is satisfied. A. keep B. show C. pay D. take 17. Another feature in northern cuisine is in winter all family members gather around a big hotpot .there is a combination of seasoned broth, vegetables and meat. A. what B. when C. which D. in which 18. You ..chicken. you cook it in an oven or over a fire without liquid. A. fry B. roast C. steam D. boil 19. cups of coffee have you taken.? A. How many B. How much C. How D. How far 20. Common eating habits that can lead to .are: eating too fast, eating when not hungry, eating while standing up, and skipping meals. A. put on weight B. be heavy C. gain weight D. weight gain 21. We didnt buy flowers yesterday. A. some B. many C. much D. any 22tall you've grown! A. What B. How C. How much D. How many 23. Most of the pupils are ................... to pass the examination. A. good enough B. too good C. very good D. good too 24. They felt happy, and did I. A. either B. neither C. too D. so 25. If any body a question, please ask me after class. A. has B. have C. to have D. had