Some of this heat near the earth's surfa
题型:选择题
问题:
Some of this heat near the earth's surface _________ make electricity.
A.is used for
B.is used to
C.gets used to
D.used to
Some of this heat near the earth's surface _________ make electricity.
A.is used for
B.is used to
C.gets used to
D.used to