【题目】Photos are magical in that they can have us seeing moments from the past they were frozen in time.
A. when B. in case
C. unless D. as if
在线课程【答案】D
【解析】考查连词。A. when当…时；B. in case万一，假使；C. unless除非；D. as if似乎，好像。句意：照片是神奇的，因为它们能让我们看到过去的时刻，就好像它们被时间冻结了一样。此处表示似乎，好像，故选D.