I.
1. Energy is very important in our modern life
2. People use energy to run machines, heat their homes.
3. Most energy comes from fossil fuels such as petroleum, coal and natural gas.
4. However, burning fossil fuels causes pollution.
5. If we don't find new kinds of energy, we will use up all the fossil fuels in 21st century.
6. Scientists are working to find other kinds of energy for the future.

I
1. energy is very important in the modern life
2.people use every energy to run their machines, heat their homes.
3. most of energy comes from fossil fuels, petroleum coal and natural gas
4. however, burning fossil fuels causes pollution
5- if we don't find any new kinds of enerdy, we will ise up all fossil fuels in 21st century
6. scientists have worked to find many kinds of energy for the future
ii
1 it's about 1,877km from HN to Can THo
2- how far is it from hue to da nang?
3. there used not to be much traffic when i was small
4- inspit of being tired, they wanted to watch the film
5- although the festival took place in as remote area, a lot of people attended it
3-