There are different forms of energy, _____ come from the sun.
A. that
B. most of that
C. most of them
D. most of which
A. that
B. most of that
C. most of them
D. most of which
【答案】
A. that
B. most of that
C. most of them
D. most of which
A. that
B. most of that
C. most of them
D. most of which
【答案】
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