Nếu một vật có nhiệt độ 80 ^oC tiếp xúc với một vật có nhiệt độ 30 ^oC thì quá trình truyền nhiệt sẽ dừng lại khi nhiệt độ của hai vật

Read the passage and choose the correct answer to each of the following questions.

1. Imagine this: Your little brother's favourite toy car has a broken wheel, and he's about to cry. You're not worried, though. You take some pictures of the broken part and use your 3D printer to make a new one.

2. 3D printers are amazing machines that can create objects from digital designs. Surprisingly, people first thought of this idea way back in 1984, and by 1993, they started a company to make it happen! Since 2004, 3D printers have become small and affordable, so almost anyone can have one at home. In 2018, they sold more than half a million of them around the world.

3. How do they work? Well, instead of using ink like regular printers, 3D printers use materials like plastic or metal. They put these materials layer by layer to build a 3D shape.

4. People are using 3D printers to make all sorts of things, like jewelry and decorations. Even sports companies are using them to make shoes that fit perfectly. And doctors use 3D printers to make things like replacement bones. It makes surgeries easier and helps people get better faster.

5. 3D printers are developing all the time, and are becoming the piece of technology every home should have. And you might be able to print one soon, who knows yourself.

(27) The word “they” in paragraph 2 refers to _________.

Read the passage and choose the correct answer to each of the following questions.

1. Imagine this: Your little brother's favourite toy car has a broken wheel, and he's about to cry. You're not worried, though. You take some pictures of the broken part and use your 3D printer to make a new one.

2. 3D printers are amazing machines that can create objects from digital designs. Surprisingly, people first thought of this idea way back in 1984, and by 1993, they started a company to make it happen! Since 2004, 3D printers have become small and affordable, so almost anyone can have one at home. In 2018, they sold more than half a million of them around the world.

3. How do they work? Well, instead of using ink like regular printers, 3D printers use materials like plastic or metal. They put these materials layer by layer to build a 3D shape.

4. People are using 3D printers to make all sorts of things, like jewelry and decorations. Even sports companies are using them to make shoes that fit perfectly. And doctors use 3D printers to make things like replacement bones. It makes surgeries easier and helps people get better faster.

5. 3D printers are developing all the time, and are becoming the piece of technology every home should have. And you might be able to print one soon, who knows yourself.

(26) Which of the following can be the best title for the passage?

Cặp̣ số nào sau đây là nghiệm của bất phương trình \(2x-y>1\) ?

Provide the correct form of the verb in each of the following sentences.

The new policy allowed employees __________________ (work) from home twice a week.

Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Choose the answer to fill in the blank in each of the following questions. 

After the earthquake, thousands of people __________ to help clean up the streets.

Read the passage and choose the correct answer to each of the following questions.

1. Imagine this: Your little brother's favourite toy car has a broken wheel, and he's about to cry. You're not worried, though. You take some pictures of the broken part and use your 3D printer to make a new one.

2. 3D printers are amazing machines that can create objects from digital designs. Surprisingly, people first thought of this idea way back in 1984, and by 1993, they started a company to make it happen! Since 2004, 3D printers have become small and affordable, so almost anyone can have one at home. In 2018, they sold more than half a million of them around the world.

3. How do they work? Well, instead of using ink like regular printers, 3D printers use materials like plastic or metal. They put these materials layer by layer to build a 3D shape.

4. People are using 3D printers to make all sorts of things, like jewelry and decorations. Even sports companies are using them to make shoes that fit perfectly. And doctors use 3D printers to make things like replacement bones. It makes surgeries easier and helps people get better faster.

5. 3D printers are developing all the time, and are becoming the piece of technology every home should have. And you might be able to print one soon, who knows yourself.

(30) What does the passage imply about the future of 3D printers?

Choose the answer to fill in the blank in each of the following questions. 

I'll be disappointed if my favourite contestant is __________ in the first round.

Choose the word whose underlined part differs from the other three in pronunciation in each of the following questions.

Read the following passage and choose the correct answer that best fits each of the following blanks.

Helping the community is a meaningful way to give back and create a positive (21) __________ on the lives of those around us. When we help our community, we do things to help our neighbours and the people who live near us. This could mean picking up trash in the park, (22) __________ food to a local shelter, or planting flowers in a public garden.

Community helpers are like superheroes without capes. They volunteer their time and skills to support others. Even small acts of kindness, like smiling at your neighbours or helping an elderly person (23) __________ groceries, can make a big difference.

When we help our community, we (24) __________ strong relationships with the people around us. We create a place where everyone feels cared (25) __________ and valued. So, whether you're cleaning up a park or simply being kind to your neighbours, you're making your community a better and happier place for everyone.

Choose the word whose stress pattern is different from the other three in each of the following questions. 

Cho hai tập hợp \(A=\left\{ 1;2;3;4 \right\}\) và \(B=\left\{ 1;3;5 \right\}\).

Có bao nhiêu tập hợp \(X\) mà \(X\subset A\) và \(X\subset B\) ?

Choose the answer to fill in the blank in each of the following questions. 

The machine was tested to ensure it was __________ for different weather conditions.

Choose the answer to fill in the blank in each of the following questions. 

__________ to music helps her concentrate while studying.

Read the following passage and choose the correct answer that best fits each of the following blanks.

Helping the community is a meaningful way to give back and create a positive (21) __________ on the lives of those around us. When we help our community, we do things to help our neighbours and the people who live near us. This could mean picking up trash in the park, (22) __________ food to a local shelter, or planting flowers in a public garden.

Community helpers are like superheroes without capes. They volunteer their time and skills to support others. Even small acts of kindness, like smiling at your neighbours or helping an elderly person (23) __________ groceries, can make a big difference.

When we help our community, we (24) __________ strong relationships with the people around us. We create a place where everyone feels cared (25) __________ and valued. So, whether you're cleaning up a park or simply being kind to your neighbours, you're making your community a better and happier place for everyone.

Read the passage and choose the correct answer to each of the following questions.

1. Imagine this: Your little brother's favourite toy car has a broken wheel, and he's about to cry. You're not worried, though. You take some pictures of the broken part and use your 3D printer to make a new one.

2. 3D printers are amazing machines that can create objects from digital designs. Surprisingly, people first thought of this idea way back in 1984, and by 1993, they started a company to make it happen! Since 2004, 3D printers have become small and affordable, so almost anyone can have one at home. In 2018, they sold more than half a million of them around the world.

3. How do they work? Well, instead of using ink like regular printers, 3D printers use materials like plastic or metal. They put these materials layer by layer to build a 3D shape.

4. People are using 3D printers to make all sorts of things, like jewelry and decorations. Even sports companies are using them to make shoes that fit perfectly. And doctors use 3D printers to make things like replacement bones. It makes surgeries easier and helps people get better faster.

5. 3D printers are developing all the time, and are becoming the piece of technology every home should have. And you might be able to print one soon, who knows yourself.

(29) Which of the following is NOT mentioned as a use of 3D printers?

Choose the answer to fill in the blank in each of the following questions. 

I __________ the same backpack since I started high school.

Read the following passage and choose the correct answer that best fits each of the following blanks.

Helping the community is a meaningful way to give back and create a positive (21) __________ on the lives of those around us. When we help our community, we do things to help our neighbours and the people who live near us. This could mean picking up trash in the park, (22) __________ food to a local shelter, or planting flowers in a public garden.

Community helpers are like superheroes without capes. They volunteer their time and skills to support others. Even small acts of kindness, like smiling at your neighbours or helping an elderly person (23) __________ groceries, can make a big difference.

When we help our community, we (24) __________ strong relationships with the people around us. We create a place where everyone feels cared (25) __________ and valued. So, whether you're cleaning up a park or simply being kind to your neighbours, you're making your community a better and happier place for everyone.

Chọn mệnh đề đúng trong các mệnh đề sau:

Read the following passage and choose the correct answer that best fits each of the following blanks.

Helping the community is a meaningful way to give back and create a positive (21) __________ on the lives of those around us. When we help our community, we do things to help our neighbours and the people who live near us. This could mean picking up trash in the park, (22) __________ food to a local shelter, or planting flowers in a public garden.

Community helpers are like superheroes without capes. They volunteer their time and skills to support others. Even small acts of kindness, like smiling at your neighbours or helping an elderly person (23) __________ groceries, can make a big difference.

When we help our community, we (24) __________ strong relationships with the people around us. We create a place where everyone feels cared (25) __________ and valued. So, whether you're cleaning up a park or simply being kind to your neighbours, you're making your community a better and happier place for everyone.