a. I think it's because of all the construction on Main Street.

b. It's been a nightmare getting to work every morning.

c. It's been going on for months.

d. I agree.

e. I'm sorry for the inconvenience.

f. I just hope they finish the construction soon.

About ten thousand years ago, the first cities began to form in places with fertile land near rivers, such as Mesopotamia and Egypt. People started growing crops and could settle in one location instead of constantly moving to find food. Rivers made it easier for them to trade with neighbouring communities.

Cities attracted people because of the opportunities for trade, education, and work. However, urbanisation is a relatively recent development. Until 250 years ago, the majority of people, about 90%, lived in rural areas. While ancient cities like those in Mesopotamia have disappeared, other cities have flourished and expanded. For instance, Cairo in Egypt now has a population of 22 million people.

The Industrial Revolution in the mid-1800s played a key role in the rapid urbanisation we see today. It began in England and spread to Europe and America, prompting people to move from rural areas to cities to work in factories. This migration caused city populations to grow rapidly. For example, London's population increased from one million in 1800 to over six million in just ten years.

Modern advancements in infrastructure, transportation, education, and entertainment continue to draw people to large cities. Today, more than half of the world's population lives in urban areas, and experts predict that by 2050, this number will rise to two-thirds.

The first cities to reach populations of over 10 million, known as megacities, were New York City and Tokyo in the 1950s. Today, there are 33 megacities around the world. Tokyo remains the largest with 37.3 million residents, but many cities, such as Delhi, Shanghai, Dhaka, São Paulo, and Mexico City, now have populations of over 20 million. Experts believe there will be 41 megacities by 2030.

About ten thousand years ago, the first cities began to form in places with fertile land near rivers, such as Mesopotamia and Egypt. People started growing crops and could settle in one location instead of constantly moving to find food. Rivers made it easier for them to trade with neighbouring communities.

Cities attracted people because of the opportunities for trade, education, and work. However, urbanisation is a relatively recent development. Until 250 years ago, the majority of people, about 90%, lived in rural areas. While ancient cities like those in Mesopotamia have disappeared, other cities have flourished and expanded. For instance, Cairo in Egypt now has a population of 22 million people.

The Industrial Revolution in the mid-1800s played a key role in the rapid urbanisation we see today. It began in England and spread to Europe and America, prompting people to move from rural areas to cities to work in factories. This migration caused city populations to grow rapidly. For example, London's population increased from one million in 1800 to over six million in just ten years.

Modern advancements in infrastructure, transportation, education, and entertainment continue to draw people to large cities. Today, more than half of the world's population lives in urban areas, and experts predict that by 2050, this number will rise to two-thirds.

The first cities to reach populations of over 10 million, known as megacities, were New York City and Tokyo in the 1950s. Today, there are 33 megacities around the world. Tokyo remains the largest with 37.3 million residents, but many cities, such as Delhi, Shanghai, Dhaka, São Paulo, and Mexico City, now have populations of over 20 million. Experts believe there will be 41 megacities by 2030.

About ten thousand years ago, the first cities began to form in places with fertile land near rivers, such as Mesopotamia and Egypt. People started growing crops and could settle in one location instead of constantly moving to find food. Rivers made it easier for them to trade with neighbouring communities.

Cities attracted people because of the opportunities for trade, education, and work. However, urbanisation is a relatively recent development. Until 250 years ago, the majority of people, about 90%, lived in rural areas. While ancient cities like those in Mesopotamia have disappeared, other cities have flourished and expanded. For instance, Cairo in Egypt now has a population of 22 million people.

The Industrial Revolution in the mid-1800s played a key role in the rapid urbanisation we see today. It began in England and spread to Europe and America, prompting people to move from rural areas to cities to work in factories. This migration caused city populations to grow rapidly. For example, London's population increased from one million in 1800 to over six million in just ten years.

Modern advancements in infrastructure, transportation, education, and entertainment continue to draw people to large cities. Today, more than half of the world's population lives in urban areas, and experts predict that by 2050, this number will rise to two-thirds.

The first cities to reach populations of over 10 million, known as megacities, were New York City and Tokyo in the 1950s. Today, there are 33 megacities around the world. Tokyo remains the largest with 37.3 million residents, but many cities, such as Delhi, Shanghai, Dhaka, São Paulo, and Mexico City, now have populations of over 20 million. Experts believe there will be 41 megacities by 2030.

About ten thousand years ago, the first cities began to form in places with fertile land near rivers, such as Mesopotamia and Egypt. People started growing crops and could settle in one location instead of constantly moving to find food. Rivers made it easier for them to trade with neighbouring communities.

Cities attracted people because of the opportunities for trade, education, and work. However, urbanisation is a relatively recent development. Until 250 years ago, the majority of people, about 90%, lived in rural areas. While ancient cities like those in Mesopotamia have disappeared, other cities have flourished and expanded. For instance, Cairo in Egypt now has a population of 22 million people.

The Industrial Revolution in the mid-1800s played a key role in the rapid urbanisation we see today. It began in England and spread to Europe and America, prompting people to move from rural areas to cities to work in factories. This migration caused city populations to grow rapidly. For example, London's population increased from one million in 1800 to over six million in just ten years.

Modern advancements in infrastructure, transportation, education, and entertainment continue to draw people to large cities. Today, more than half of the world's population lives in urban areas, and experts predict that by 2050, this number will rise to two-thirds.

The first cities to reach populations of over 10 million, known as megacities, were New York City and Tokyo in the 1950s. Today, there are 33 megacities around the world. Tokyo remains the largest with 37.3 million residents, but many cities, such as Delhi, Shanghai, Dhaka, São Paulo, and Mexico City, now have populations of over 20 million. Experts believe there will be 41 megacities by 2030.

About ten thousand years ago, the first cities began to form in places with fertile land near rivers, such as Mesopotamia and Egypt. People started growing crops and could settle in one location instead of constantly moving to find food. Rivers made it easier for them to trade with neighbouring communities.

Cities attracted people because of the opportunities for trade, education, and work. However, urbanisation is a relatively recent development. Until 250 years ago, the majority of people, about 90%, lived in rural areas. While ancient cities like those in Mesopotamia have disappeared, other cities have flourished and expanded. For instance, Cairo in Egypt now has a population of 22 million people.

The Industrial Revolution in the mid-1800s played a key role in the rapid urbanisation we see today. It began in England and spread to Europe and America, prompting people to move from rural areas to cities to work in factories. This migration caused city populations to grow rapidly. For example, London's population increased from one million in 1800 to over six million in just ten years.

Modern advancements in infrastructure, transportation, education, and entertainment continue to draw people to large cities. Today, more than half of the world's population lives in urban areas, and experts predict that by 2050, this number will rise to two-thirds.

The first cities to reach populations of over 10 million, known as megacities, were New York City and Tokyo in the 1950s. Today, there are 33 megacities around the world. Tokyo remains the largest with 37.3 million residents, but many cities, such as Delhi, Shanghai, Dhaka, São Paulo, and Mexico City, now have populations of over 20 million. Experts believe there will be 41 megacities by 2030.