We have to ______ more clean energy to stop the pollution from worsening.
举一反三
- People are beginning to use clean energy sources mainly because _______. A: fossil fuels have caused a lot of pollution B: clean energy is cheap C: fossil fuels have cost a lot of lives D: they do not have enough fossil fuels now
- We will have to rely more on ________ energy, such as solar and wind power.
- What should we do to protect the environment in daily life? A: using clean energy, such as solar energy and wind energy B: using more electricity C: reducing the cost of fund (资金) D: having more bikes
- More and more people ____ the new energy because it is clean and cheap.
- To stop global warming we have to use _______ energy like solar and wind. A: self-sufficient B: fossil-fuel C: renewable