2 A

3 A

4 C

5 A

6 D

7 A

8 B

9 C

10 A

1C 2A 3D 4B

What about helping me with my HW?

I haven't met her for 3 days

Have you ever read that book yet?

The USA had colour TV in 1953

The Eiffel Tower is the most famous building in Paris

Ngoc has never been to HCM city before

1D 2D 3B 4C

Bài 5: 1.C

2.A

3.D

4.B

Bài 6: 1.What about helping me with my homework?

2. I haven't met her for three days

Bài 7: 1. Have you ever read that book yet?

2. The USA had colour TV in 1953

3. The Eiffel Tower is the most famous building in Paris

4.Ngoc has never been to Ho Chi Minh City before

Bài 8: 1.D

2.D

3.B

4.C

\(a)x=9/20-(-13/24)=>x=9/20+13/24=119/120\)

\(b)x=-2/5-13/15=-19/15\)

\(c)-x=-1/8+1/12=-1/24=>x=1/24\)

\(d)-4/9-x=5/36=>x=-4/9-5/36=-7/12\) 

a.\(\Leftrightarrow x=\dfrac{9}{20}+\dfrac{13}{24}\Leftrightarrow x=\dfrac{119}{120}\)

b.\(\Leftrightarrow x=-\dfrac{2}{5}-\dfrac{13}{15}\Leftrightarrow x=\dfrac{-19}{15}\)

c.\(\Leftrightarrow-x=-\dfrac{1}{8}+\dfrac{1}{12}\Leftrightarrow-x=-\dfrac{1}{24}\Leftrightarrow x=\dfrac{1}{24}\)

d.\(\Leftrightarrow-x=\dfrac{5}{36}+\dfrac{4}{9}\Leftrightarrow x=-\dfrac{7}{12}\)

\(e.\Leftrightarrow\dfrac{x}{4}=\dfrac{31}{140}+\dfrac{3}{7}-\dfrac{2}{5}\Leftrightarrow\dfrac{x}{4}=\dfrac{1}{4}\Leftrightarrow x=1\)

f.\(ĐK:x\ne0\)

\(\Leftrightarrow\dfrac{5}{x}=\dfrac{1}{2}-\dfrac{5}{12}+\dfrac{1}{8}\Leftrightarrow\dfrac{5}{x}=\dfrac{5}{24}\Leftrightarrow x=24\left(tm\right)\)

g.\(\Leftrightarrow x=\dfrac{11}{10}-\dfrac{1}{9}\Leftrightarrow x=\dfrac{89}{90}\)

h.\(\Leftrightarrow\dfrac{5-x}{12}=\dfrac{3}{8}-\dfrac{7}{24}\Leftrightarrow\dfrac{5-x}{12}=\dfrac{1}{12}\Leftrightarrow5-x=1\Leftrightarrow x=4\)

a)x=9/20−(−13/24)=>x=9/20+13/24=119/120a)x=9/20−(−13/24)=>x=9/20+13/24=119/120

b)x=−2/5−13/15=−19/15b)x=−2/5−13/15=−19/15

c)−x=−1/8+1/12=−1/24=>x=1/24c)−x=−1/8+1/12=−1/24=>x=1/24

d)−4/9−x=5/36=>x=−4/9−5/36=−7/12d)−4/9−x=5/36=>x=−4/9−5/36=−7/12 

---> My teacher is tall and slim. 

some - some - any - a - an

some

some 

any 

a 

an

Yes

5 hours

Because some say that there is a lot of violence on TV today, the programs are terrible and people don't get any exercise because they only sit and watch TV

It brings news from around the world, help you learn many useful things, especially children

We learn about life in other countries

1. Yes, it is.
2. Americans watch TV 5 hours a day.
3. Some say that there is a lot of violence on TV today, the programs are terrible and people don't get any exercise because they only sit and watch TV. 
4. It brings news from around the world.
5. You can learn many new things, about life in other countries and it also helps people relax after a long day of hard work.

Nèk:

1. Yes, it is.
2. Americans watch TV 5 hours a day.
3. Some say that there is a lot of violence on TV today, the programs are terrible and people don't get any exercise because they only sit and watch TV. 
4. It brings news from around the world.
5. You can learn many new things, about life in other countries and it also helps people relax after a long day of hard work.

I.

1.B

2.A

3.D

4.C

II.

1.A

2.C

3.B

4.D

5.C

6.B

7.B

8.D

III.

1. feels

2. is playing

3. didn't ride

4. to eat

IV.

1.a

2.c

3.d

4.b

1 D

1 are

2 bought

3 are watching

4 gave

5 will go

6 told

7 is weraing

8 watching

9 goes

10 will visit

1 D

2 B

3 A

4 D

1 B

2 D

3 B

4 C