Ánh sáng kém :,>

Ex 2:
1. C
2. D
3. D
4. A
5. B
6. D
7. B
8. A
9. C
10. C

Ex 3:
1. B
2. C
3. A
4. D
5. B

Ex 4:
1. D
2. C
3. B
4. B
5. A

1. Are there a lot of beautiful mountains in Ha Tinh?
2. Does it have many rivers?
3. Are there any beautiful beaches?
4. Does it have any lakes?
5. What language does she speak?

will 

leaves
starts
is departing
starts
goes
does the concert begin
won't come
will come
will make
starts

Thám hoa Giang Văn Minh 

\(\left(\sqrt{\dfrac{9}{25}}-\dfrac{1}{3}\right):\dfrac{8}{35}-\left(-\dfrac{1}{3}\right)^2-\left|-\dfrac{3}{4}\right|\)

\(=\left(\dfrac{3}{5}-\dfrac{1}{3}\right):\dfrac{8}{35}-\dfrac{1}{9}-\dfrac{3}{4}\)

\(=\dfrac{4}{15}\times\dfrac{35}{8}-\dfrac{1}{9}-\dfrac{3}{4}\)

\(=\dfrac{7}{6}-\dfrac{1}{9}-\dfrac{3}{4}\)

\(=\dfrac{11}{36}\)

\(\left(-\dfrac{1}{5}\right)^2+\dfrac{9}{25}\left(-\dfrac{7}{9}\right)^0-\left(\dfrac{1}{3}-\sqrt{\dfrac{25}{64}}\right):\dfrac{7}{8}+\sqrt{0,01}\)

\(=\dfrac{1}{25}+\dfrac{9}{25}.1-\left(\dfrac{1}{3}-\dfrac{5}{8}\right):\dfrac{7}{8}+\dfrac{1}{10}\)

\(=\dfrac{2}{5}-\dfrac{-7}{24}:\dfrac{7}{8}+\dfrac{1}{10}\)

\(=\dfrac{2}{5}-\dfrac{-1}{3}+\dfrac{1}{10}\)

\(=\dfrac{11}{15}+\dfrac{1}{10}\)

\(=\dfrac{5}{6}\)

\(\left(\dfrac{-3}{2}\right)^2+\left|-\dfrac{5}{6}\right|-1\dfrac{1}{2}:6\)

\(=\dfrac{9}{4}+\dfrac{5}{6}-\dfrac{3}{2}\times\dfrac{1}{6}\)

\(=\dfrac{9}{4}+\dfrac{5}{6}-\dfrac{1}{4}\)

\(=\dfrac{17}{6}\)