-The boys said that they were picking up litter on the beach then.

-Before Lucas arrives at the restaurant, we won't order our meals.

-During a flood, you should listen to instructions from local authorities.

-Mars is one of the most promising planets for life in the solar system.

Typhoons are one of the most common natural disasters in Viet Nam, especially in the central coastal regions. They usually occur from August to November every year. When a typhoon hits, it brings heavy rain and extremely strong winds, which can cause severe flooding and landslides. These storms often destroy crops, damage houses, and disrupt transport systems. To minimize the damage, the government usually warns people to evacuate to safer places and reinforces public buildings. Although typhoons are unpredictable and dangerous, being well-prepared can help protect lives and property.

-He asked the villagers how often earthquakes occurred in that region.

-They told me (that) I could find a wide range of beauty products in their store.

- I think robots can't replace the role of teachers in education.

- People will still be sending letters to each other in 2050.