Complete the sentences

1. What/at/home?/ you/ use/ type/ do/ of/energy/

2. Vietnam/ sources./than/got/more/other/ energy/ energy/from/coal/from/

3. Nuclear/ and efficient/ power/ producing/is/a/ clean/way/ of/ electricity,/be/dangerous./but/it/ may/

4. A coal/pollution./power/plant/it/ causes/ is/ cheap/ to build,/ but/

50. Scientists/a new/ to replace/ are/for/energy/coal/source/ now./looking/