问题补充:
the house is empty, memories flood my mind of a time when it was filled with life.
A. Since
B. Unless
C. As if
D. Even though
答案:
A. Since
B. Unless
C. As if
(答案→)D. Even though
解析:考查连词:A. Since自从,B. Unless除非,C. As if好像,D. Even though即使,句意是:即使房子是空的,我的脑海里充满的一段时光的记忆,那是生活很丰富。选D。