Whateverthecauseoftheheatmaybe,wedoknowthattheearthgets...

问题详情：

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

【回答】

B

知识点：形容词

题型：选择题