Whatever the cause of the heat may be, we do know that the earth gets hotter down we dig.A

发布时间：2020-08-16 14:24:26

Whatever the cause of the heat may be, we do know that the earth gets hotter       down we dig.
A. further
B. the farther
C. the farthest
D. the furthest

网友回答

A. further
(答案→)B. the farther
C. the farthest
D. the furthest
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