1. walks
2. learn
3. goes
4. feel
5. study
6. have
7. does
8. likes
9. do you have
10. doesn't have
11. play
12. reads
13. have
14. does
15. go
16. are
17. has
18. watches
19. is
20. am - are

Tìm x, biết:
1) \(\left(0,4x-2\right)-\left(1,5x+1\right)-\left(-4x-0,8\right)=3,6\)
2) \(\left(\dfrac{3}{4}x+3\right)-\left(\dfrac{2}{3}x-4\right)-\left(\dfrac{1}{6}x+1\right)=\left(\dfrac{1}{3}x+4\right)-\left(\dfrac{1}{3}x-3\right)\)

3) \(\dfrac{x+1}{3}=\dfrac{x-2}{4}\)

4) \(3\left(x-2\right)+2\left(x-1\right)=10\)

1. B
2. D
3. B
4. A
5. C
6. D
7. B
8. C

26. was showing - sat
27. don't use
28. is he talking
29. drives - drives

1. more
2. more
3. less
4. more
5. more
6. less
7. more
8. less
9. more
10. less - more
11. more
12. more
13. less
14. less
15. less - more
16. less
17. more
18. more
19. more
20. more

a) \(\dfrac{1}{2}+\dfrac{1}{3}+\dfrac{1}{6}\)

\(=\dfrac{3}{6}+\dfrac{2}{6}+\dfrac{1}{6}\)

\(=1\)

b) \(\dfrac{4}{7}+\dfrac{3}{4}+\dfrac{2}{7}\)

\(=\left(\dfrac{4}{7}+\dfrac{2}{7}\right)+\dfrac{3}{4}\)

\(=\dfrac{6}{7}+\dfrac{3}{4}\)

\(=\dfrac{24}{28}+\dfrac{21}{28}\)

\(=\dfrac{45}{28}\)

c) \(\dfrac{1}{6}+\dfrac{5}{24}+\dfrac{2}{3}\)

\(=\dfrac{4}{24}+\dfrac{5}{24}+\dfrac{16}{24}\)

\(=\dfrac{25}{24}\)

d) \(\dfrac{1}{2}+\dfrac{5}{16}-\dfrac{1}{4}\)

\(=\dfrac{8}{16}+\dfrac{5}{16}-\dfrac{4}{16}\)

\(=\dfrac{9}{16}\)

e) \(1-\left(\dfrac{1}{5}+\dfrac{1}{2}\right)\)

\(=1-\dfrac{7}{10}\)

\(=\dfrac{3}{10}\)

f) \(\dfrac{2}{3}+\dfrac{1}{2}-\dfrac{5}{6}\)

\(=\dfrac{4}{6}+\dfrac{3}{6}-\dfrac{5}{6}\)

\(=\dfrac{1}{3}\)

g) \(\dfrac{5}{12}+\dfrac{5}{6}-\dfrac{3}{4}\)

\(=\dfrac{5}{12}+\dfrac{10}{12}-\dfrac{9}{12}\)

\(=\dfrac{1}{2}\)

h) \(\dfrac{7}{5}-\dfrac{4}{15}-\dfrac{2}{3}\)

\(=\dfrac{21}{15}-\dfrac{4}{15}-\dfrac{10}{15}\)

\(=\dfrac{7}{15}\)

My best friend studies in London.
My little girl often cries at night.
Thu an Hoa study at a same school.

bought

2. are playing
3. Is, cooking
4. are
5. goes
6. doesn't go
7. do, go

1. lovely
2. careful
3. strong
4. dangerous
5. interesting
6. friendly
7. orphanage
8. humorous
9. extremely
10. beautiful
11. lucky
12. peace
13. lovely
14. pleasure
15. extremely
16. peace