Match the words in Column A with those in Column B to form new words. Then complete the following sentences with the words thus formed. Change the form if necessary.
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In this conversation, two students are talking about China's fast development in recent years. Listen carefully, and fill in the gaps with one word or one number.[音频]China is a(n) _____ with clean energy.
____ is still used but they are changing to hydroelectric power in China.
Hydroelectric is better for the ___________.
China built the Three Gorges Dam to make ____ power.