---Tom hurt his left leg in the game this morning.
---Really? It would take at least two weeks he could recover and return to school.
A. when
B. that
C. since
D. before
网友回答
A. when
B. that
C. since
(答案→)D. before
解析:考查连词before的用法,before在什么之前,才,就,句意:今天上午汤姆在比赛中上了左腿,真的吗?要花至少两周的时间他才能恢复回到学校。所以选D。