a. Nam: Yes, Mai and I did. The fair was great, and we got a lot of useful information.

b. Ms. Hoa: I'm glad to hear that both of you attended the fair.

c. Ms. Hoa: Good morning, class. There was an education fair last weekend. Did anyone go?

Which of the following is NOT mentioned as a problem for multicultural businesses?

a.   If we continue to put sustainability at the center of our recovery plans, we will have stronger economies that can last for a long time without damaging nature.

b.  When businesses use clean energy like solar power, they can save money while they help the environment.

c.   Cities that plant more trees and build bike lanes are becoming healthier places where people enjoy living and working.

d.  Many countries are planning new ways to grow their economies because the old ways hurt our planet too much.

e.   Although some people think green jobs are expensive, studies show that they create more work opportunities than traditional industries.

a. However, this scenic landscape complex may be adversely affected by mass tourism.

b. This kind of tourism can result in environmental degradation, such as pollution of rivers and caves, erosion of trails and disturbance of wildlife.

c. Tràng An (Ninh Bình province), the first site in Vietnam to be recognized by UNESCO as a mixed World Heritage Site, is famous for its outstanding karst landscape and important cultural landmarks.

d. To preserve Tràng An, it is recommended that Vietnamese people increase their awareness of the site's significance, actively participate in responsible tourism practices and support local communities.

e. Another problem might be young people's lack of knowledge about the cultural heritage, which causes inappropriate behaviors and insufficient support for conservation efforts.

a. All of these efforts aim to not only improve our environment but also raise awareness about the importance of protecting our planet.

b. Additionally, every year we hold a “Clean Up Day” during which students and teachers work together to clean our school and the nearby area.

c. We also have a recycling program where students collect and sort materials like paper, plastic, and glass for recycling.

d. I hope you're doing well. In your last letter, you asked me about the things our school does to keep the surroundings clean and green.

e. At our school, we take part in several green initiatives. For example, we plant trees and maintain a small vegetable garden to encourage sustainability.

Best regards,

Tuan