= 3 (x - 1) - 5x (x - 1)

= (3 - 5x) (x - 1)

1. the second question was more difficult than the first one

2. the brown coat is bigger than the black one

3. the sofa is more comfortable than the chair

4. jack's suitcase was heavier than jim's suitcase

5. my homework was worse than his homework

a

1. c

2. a

1. worker

2. collect

3. question

4. of

2. c

3. b

4. d

5. a

6. c

7. c

8. a

9. c

10. b

11. b

12. câu này tớ nghĩ là for nma trong đề thì k có ý

13. c

14. b

15. b

16. d

17. b

18. c

19. d

20. b

21. c

22. c

23. b

24. b

25. b

26. b

27. d

28. câu này k có gợi ý nma tớ nghĩ là so that

b

giả sử 8 sọt đều đựng quýt, số quýt sẽ là :

179 x 8 = 1432 (quả)

số quýt bị thừa :

1432 - 1120 = 312 (quả)

nếu thay 1 sọt cam bằng 1 sọt quýt thì số quả đổi ra :

179 - 75 = 104 

số sọt cam :

312 : 104 = 3 (sọt)

số quả cam :

75 x 3 = 225 (quả)

số quả quýt :

1120 - 225 = 895 (quả)

vậy, có 225 quả cam và 895 quả quýt

a

b, c, d phát âm là /u:/ còn a là /ʌ/

1. mai usually listens to kpop music in her free time

2. when i was a child, i enjoyed playing computers games

3. my father spends most of his spare time looking after the garden

4. is watching tv most the popular leisure activity in britain ?

5. many teenagers are addicted to the internet and computers game

6. most of my friends prefer playing sports to surfing the net

7. in today's world, teenagers rely technology more than in the past