B. WRITING

I. Circle the letter A, B, C or D under the word/ phrase that needs correcting.

B (if to tell → whether to tell)

C (didn’t have → wouldn’t have)

B (suggest → suggests)

II. Rewrite these sentences begin with the words given.

She asked me how to deal with school pressure.

He advised me to call the helpline because they could give me good advice.

III. Write an email (100 - 120 words) to a friend of yours telling him/her about one city that you would like to visit the most.

Dear [Friend's Name],

I hope you're doing well! I wanted to share with you about a city I’m really excited to visit – Paris, France. I’ve always dreamed of exploring its rich culture, stunning architecture, and delicious cuisine. The Eiffel Tower, Louvre Museum, and Notre-Dame Cathedral are some of the iconic landmarks I can’t wait to see.

What attracts me most is the city’s artistic vibe and romantic atmosphere. I plan to visit during the spring, around April, when the weather is pleasant, and the flowers are in full bloom. I’d love to stroll along the Seine River and enjoy a coffee at a charming café.

I hope to make this trip next year. Let me know if you have any tips or recommendations!

Best,
[Your Name]


=)))

chụp rõ hơn tí mới làm đc nhé

1 If my father didn't smoke too much, he wouldn'e have a bad cold

2 If she were tall enough, she could join the basketball team

3 If I had much time, I would visit my grandparents very often

4 If he knew her address, he could visit her

5 If the bike weren't too small, I could ride it

6 If they had enough money, they would buy the tickets for the concerts

7 If I had a car, I wouldn't have to get up early to catch the bus

8 If Mark were't talkative, people would like him 

9 If Ken played football well enough, he would be chosen to be in the school team

10 If Emma read book often, her essays wouldn't be bad

Cả Hi Lạp và Rô-ma

Giá tiền của máy tính sau khi giảm đợt 1 là:

         5 000 000-(5 000 000 ✖10%)=4 500 000 (đồng)

sau 2 đợt giá tiền chiếc máy tính là:

        4 500 000-(4 500 000✖8%)=4 140 000 (đồng)

a) \(K^I_x\left(CO_3\right)^{II}_y\)

Theo quy tắc hóa trị: x.I = y.II

=> \(\dfrac{x}{y}=\dfrac{II}{I}=\dfrac{2}{1}\)

=> K₂CO₃

b) \(Fe^{III}_xO_y^{II}\)

Theo quy tắc hóa trị: x.III = y.II

=> \(\dfrac{x}{y}=\dfrac{II}{III}=\dfrac{2}{3}\)

=> Fe₂O₃

c) \(Al^{III}_x\left(SO_4\right)^{II}_y\)

Theo quy tắc hóa trị: x.III = y.II

=> \(\dfrac{x}{y}=\dfrac{II}{III}=\dfrac{2}{3}\)

=> Al₂(SO₄)₃

d) \(H^I_xS^{II}_y\)

Theo quy tắc hóa trị: x.I = y.II

=> \(\dfrac{x}{y}=\dfrac{II}{I}=\dfrac{2}{1}\)

=> H₂S

K2CO3 (98)

Fe2O3 (160)

Al2(SO4)3 (342)

H2S (34)

3: \(\begin{cases}2x-3y=11\\ -4x+6y=5\end{cases}\Rightarrow\begin{cases}4x-6y=22\\ -4x+6y=5\end{cases}\)

=>\(\begin{cases}4x-6y-4x+6y=22+5\\ 2x-3y=11\end{cases}\Rightarrow\begin{cases}0x=27\\ 2x-3y=11\end{cases}\)

=>(x;y)∈∅

4: \(\begin{cases}3x+2y=1\\ 2x-y=3\end{cases}\Rightarrow\begin{cases}3x+2y=1\\ 4x-2y=6\end{cases}\)

=>\(\begin{cases}3x+2y+4x-2y=1+6=7\\ 2x-y=3\end{cases}\Rightarrow\begin{cases}7x=7\\ y=2x-3\end{cases}\)

=>\(\begin{cases}x=1\\ y=2\cdot1-3=2-3=-1\end{cases}\)

5: \(\begin{cases}2x+5y=2\\ 6x-15y=6\end{cases}\Rightarrow\begin{cases}6x+15y=6\\ 6x-15y=6\end{cases}\)

=>\(\begin{cases}6x+15y+6x-15y=6+6=12\\ 2x+5y=2\end{cases}=.\begin{cases}12x=12\\ 5y=2-2x\end{cases}\)

=>\(\begin{cases}x=1\\ 5y=2-2\cdot1=0\end{cases}\Rightarrow\begin{cases}x=1\\ y=0\end{cases}\)