问题补充:
20.—Though it is 30 years we last met, I still remember the scene we got separated on a rainy day.
A. since; where
B. before; which
C. since; when
D. before; where
答案:
(答案→)A. since; where
B. before; which
C. since; when
D. before; where
解析:可联系答.案.网客服索取。