Complete the second sentence so that it means the same as the sentence before.

1. He got the first prize at the competition. His mother is very happy

=> His mother __________________________________________________________________

2. They think he built a new school for children last month.

=> He is______ ________________________________________________________________

3. In spite of the heavy rain, he still went to class on time.

=> Although____________________________________________________________________

4. I think you should go to work by bike.

=> What about __________________________________________________________________

5. Mr Buong hasn't worked  in the country since he was a child.

=> The last time____________________________________________________________________

Energy is fundament to human beings. Many poor people in developing countries do not have modern sources of energy like electricity or natural gas, with which their life can be improved.

People who live in mountainous areas have to gather wood for fuel. This takes a lot of time. For many people living in rural areas, biogas is the largest energy resource available. The main use of biogas is for cooking and heating, but it can also provide energy for public transport. As biogas is smoke-free, it helps the problem of indoor air pollution. Moreover, it is made from plant waste and animal manure. They cost almost nothing.

The tendency to use renewable energy sources in developing sources in developing countries is on the increase as non-renewable ones are running out. In the future, the wind and the sun will be used as the most important environmentally friendly energy sources.

Write (T) for True or (F) for false statement

     B. Answer the following questions

1. Where is biogas made from?

___________________________________________________________________________________

2. Does biogas help the problem of indoor air pollution?

_________________________________________________________________________________

3. What environmentally friendly enery sources will be used in the future?

____________________________________________________________________________

1.   way/ others/ community/ a/ help/ service/ is/ great/ to/.

      ___________________________________________________________________________________________________

2.   they/community/people/ because/ volunteer/ want/ improve/ to/ their/.

      ___________________________________________________________________________________________________

3.   encouraged/ books/ people/ street children/ we/ to/ donate/ and clothes/ to

      ___________________________________________________________________________________________________

4.   what/ to/ help/ we/ can/ do/ the environment/ clean/?

      ___________________________________________________________________________________________________

5.   work/ done/ you/ ever/ have/ volunteer/ any?

      ___________________________________________________________________________________________________

6.   free time/ Joe/ doing/ work/ spent/ most/ at/ his/ local hospital/ a/ of/ volunteer.

      ___________________________________________________________________________________________________