Visual pollution has a greater effect on people than you think. I remember when I went to a foreign country, I was really scared because there was so much graffiti on the building’s wall. Then I looked up, and I saw a lot of power lines over my head. Although they were not dangerous, I still felt insecure since I thought they might fall down. These things prevented me from enjoying the beautiful sights of the city. I also remember the time I studied in Melbourne. Once I was so busy with my assignments that I did not tidy my room for two weeks. Looking at the messy room caused me so much stress that I did not to study. Then I decided to clean the room and put my things in their proper places. I also bought a small plant and placed it in a corner. These simple actions increased my motivation and helped me focus on my learning.

1.How does visual pollution have effect on people?
2.What are there over the head of the writer?
3.What did the power line prevent the writer?
4.Did looking at the messy room make the writer stress?
5.What did the writer bring into the room?

Many...are trying to find the ways to solve the pollution (science)

The train to Ho Chi Minh city.... tomorrow / A .leaves B.had left C.will be leaving D.left