Some of this heat near the earth’s surface _________ make electricity.
A．is used forB．is used to
C．gets used toD．used to
B
考查used的用法。A“被用來做......”，+doing；B“被用來”，+do；C“習(xí)慣于......”；D“過去常�！�。句意“接近地球表面的一些熱量被用來發(fā)電�！惫蔬xB。
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