问题补充:
She may have missed the train, she won’t arrive for another hour.
A. in that case
B. in this case
C. by which case
D. in which case
答案:
A. in that case
B. in this case
C. by which case
(答案→)D. in which case
解析:考查定语从句。in which case, which知前半句话的含义,句意:她可能错过了火车,在那种情况下,再过一小时,她不可能到达。故选D。