B7: make up meaningful sentences using the words and phrases given:
1. today/ water power/ mostly/ used/generate electricity/.
2.energy/from/sun/be/clean/cheap/safe/.
3. earth's/ fossil/ fuels/ running/out/.
4.what/happen/when/there/ no energy/ earth/?
5. we/ looking/for/alternative/sources/energy/.
-giup e vs-
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Sinh Học lớp 12
