1. The consumer prices index hit 1.6 per cent last month.

2. Vung Tau's lighthouse was first built in 1907 on the lower peak of Small Mount.
3. I’m still suffering from jet lag after my trip to Australia.
4. Mumbai is attempting to control the fast-growing urban sprawl.
5. Price will be a major factor in the success of this new product.
6. San Marino is the only surviving Italian city-state.
7. Investment in the railway network would reduce overcrowding on the roads.
8. You can explore Kuala Lumpur by making use of the metro system.

1. French bakers are fighting for the traditional baguette to be given UNESCO World Heritage status.

→ b. status

2. The government has done nothing to resolve the conflict over nurses’ pay.
→ a. conflict

3. They see the outdoors as a recreational activity, not a job opportunity.
→ c. recreational

4. Savannah is one of the best medium-sized cities for job growth.
→ d. medium-sized

5. The railway station was criticized for its lack of disabled facilities.
→ a. facilities

6. About 85 per cent of city dwellers breathe heavily polluted air.
→ c. dwellers

7. Dublin was a very different place in those days, like a village, not the wonderful cosmopolitan city it is now.
→ b. cosmopolitan

8. We are conducting a survey to find out what our customers think of their local bus service.
→ d. conducting

9. We are looking for someone who is reliable and hard-working.
→ c. reliable

10. It is difficult to determine the exact cause of the illness.
→ d. determine

11. Sacramento’s central location and low cost of living make this place a fabulous city.
→ a. fabulous

12. How can we encourage people to get along with each other in this multicultural society?
→ b. multicultural

13. Some workers can only afford homes outside metropolitan areas.
→ d. metropolitan

14. This is a top-quality product at a very affordable price.
→ c. affordable

1. Tokyo is one of the most liveable cities in the world.

2. You should go by train, it would be much cheaper.
3. Universal Studios is by far the best place to visit in Singapore.
4. The price of electronic devices in Vietnam is not as reasonable as that in Japan.
5. Today is the worst day I’ve had in a long time.
6. Your team is much luckier today than last week.
7. Of the four participants, Bill is the least experienced.
8. I didn’t want to wake anybody up, so I came in as quietly as I could.
9. I ran pretty far yesterday, but I ran even a lot farther today.
10. Singapore is the second most popular destination in Asia.

a) Một bên cô đặt một quả cân 500g, bên đĩa kia, cô đặt hai gói hàng như nhau và ba quả cân nhỏ, mỗi quả 50g thì cân thăng bằng.

=> 500 = 2x + 3.50 (g)

b) 500 = 2x + 3.50

=> 2x = 350

=> x = 175 (g)

In a recent survey, TechNews asked young people to (1) predict how they will talk to each other in 30 years' time. The results are not (2) surprising. Only 10% of the respondents think people will still send letters and postcards to each other (3) by 2050. About 30% think holography and telepathy technologies will allow them to communicate in (4) real time with their friends. Most people say that they will connect through supersmart devices (5) instead of in person. Meanwhile, more than half of the respondents express their (6) concerns about future communication. They say that if children spend most of their time (7) surfing on the Internet, they may also not be able to communicate face to face very well (8) in 30 years.

3b

Xét phương trình hoành độ giao điểm 

\(-2x^2=-2\left(m+1\right)x+\dfrac{1}{2}m^2-1\)

\(\Leftrightarrow2x^2-2\left(m+1\right)x+\dfrac{1}{2}m^2-1=0\) (1)

\(\Delta'=\left(m+1\right)^2-2\left(\dfrac{1}{2}m^2-1\right)=2m+3\)

Để (d) cắt (P) tại hai điểm phân biệt => (1) có 2 nghiệm phân biệt 

\(\Rightarrow2m+3>0\Rightarrow m>-\dfrac{3}{2}\)

Vì x₁ là nghiệm của phương trình (1) 

\(\Rightarrow2x_1^2-2\left(m+1\right)x_1+\dfrac{1}{2}m^2-1=0\)

\(\Rightarrow x_1^2=\left(m+1\right)x_1-\dfrac{1}{4}m^2+\dfrac{1}{2}\)

Theo bài ra để \(x_1^2+\left(m+1\right)x_2=2x_1x_2+\dfrac{15}{2}\)

\(\Rightarrow\left(m+1\right)x_1-\dfrac{1}{4}m^2+\dfrac{1}{2}+\left(m+1\right)x_2=2x_1x_2+\dfrac{15}{2}\)

\(\Rightarrow\left(m+1\right)\left(x_1+x_2\right)-2x_1x_2-\dfrac{1}{4}m^2-7=0\)

Theo Viet \(\left\{{}\begin{matrix}x_1+x_2=m+1\\x_1x_2=\dfrac{1}{2}m^2-1\end{matrix}\right.\)

\(\Rightarrow\left(m+1\right)^2-2\left(\dfrac{1}{2}m^2-1\right)-\dfrac{1}{4}m^2-7=0\)

\(\Rightarrow-\dfrac{1}{4}m^2+2m-4=0\)

\(\Rightarrow m=4\) (thoả mãn)

Vậy m = 4

đc kk nè 

I. Reported Speech

1. "Are there a hundred pupils in your class?", Tom asked me.
👉 Tom asked me if there were a hundred pupils in my class.

2. "Will the government take action to protect nature?", Mary asked Tim.
👉 Mary asked Tim whether the government would take action to protect nature.

3. "Have you enjoyed the vacation here?", Linda asked them.
👉 Linda wanted to know if they had enjoyed the vacation there.

4. "Do you enjoy the facilities at my hotel?", Ms. Lee asked us.
👉 Ms. Lee wanted to know whether we enjoyed the facilities at her hotel.

1. The restaurant, whose chef is highly skilled, serves very tasty food.

2. That woman, who performed at the concert last night, is a famous pianist.

3. Rachel, whose creativity is impressive, always excels in her studies.

4. Stress, which is very common in modern life, can have negative effects on both physical and mental health.

5. The coffee shop offers a variety of blends which are sourced from different regions.

6. We are shopping at the Central Market, which will be replaced by a skyscraper.

7. Tokyo, which is the capital of Japan, is a bustling metropolis with a rich cultural heritage.

8. The Nile River, which is the longest river in the world, flows through multiple countries in Africa.

9. The proposals will be evaluated by Professor Michael Johnson, who is the chairperson of the Academic Committee.

10. Fitness Oasis, which offers yoga classes twice a week, is situated near the city centre.

1. The last time we traveled abroad was in 2020.
👉 We haven't traveled abroad since 2020.

2. John wants to travel to Japan, but he doesn't have enough money.
👉 John wishes he had enough money to travel to Japan.

3. Jack drinks too much alcohol every day, that's why his stomach is not good.
👉 If Jack didn’t drink too much alcohol every day, his stomach would be better.

4. Minh did his homework in an hour a day.
👉 Minh spent an hour a day doing his homework.

5. This test is long and difficult. We can't finish it.
👉 This test is so long and difficult that we can't finish it.

6. We spent the whole day in the garden although the weather was bad.
👉 Despite the bad weather, we spent the whole day in the garden.

7. It is a pity that we do not have a long summer holiday.
👉 We wish we had a long summer holiday.

8. They should reduce the amount of fatty foods in their daily meals.
👉 They should cut down on the amount of fatty foods in their daily meals.

9. They began to work in this company in 2020.
👉 They have worked in this company since 2020.

10. We should preserve our customs and traditions or they will disappear one day.
👉 If we don’t preserve our customs and traditions, they will disappear one day.

Hello everyone,

Today I’d like to talk about what we should do for a greener school.

First, we should reduce plastic waste. Students can bring reusable bottles instead of using plastic ones. We can also say no to plastic bags and use cloth bags instead.

Second, we should recycle. Our school can put recycling bins in every classroom to collect paper, bottles, and cans. Teachers and students can work together to separate trash properly.

Third, we should plant more trees and flowers around the school. Green plants make the environment fresher and more beautiful. Students can take care of the school garden together.

Next, we should save electricity and water. We can turn off lights, fans, and computers when we don’t use them. We should also fix leaking taps to save water.

Finally, we should raise awareness. The school can organize green campaigns, such as “Green Day” or “Clean-Up Day”, to encourage students to protect the environment.

In conclusion, a greener school is not hard to achieve if we all work together. Let’s take action today for a better tomorrow.

Thank you for listening!

D