Flooding is one of the most common natural disasters in Vietnam, especially during the rainy season. It often occurs in central and southern regions due to heavy rain and storms. Floods cause serious damage to houses, roads, and crops. Many people lose their homes and suffer from a lack of food and clean water. The government and local people have taken actions to prevent and reduce the damage, such as building flood-resistant houses and warning systems. However, flooding remains a big challenge for the country.

Question 1: "How often do earthquakes occur in this region?" he asked the villagers. → He asked the villagers how often earthquakes occurred in that region. Question 2: "You can find a wide range of beauty products in our store," they told me. → They told me that I could find a wide range of beauty products in their store.

Question 1: I think robots can’t replace the role of teachers in education. 

Question 2: People will still send letters to each other in 2050.