问题补充:
I asked him to come at 8 o’clock, but he . It’s already 9 now.
A. didn’t show up
B. hasn’t shown
C. hadn’t shown
D. wasn’t showing up
答案:
(答案→)A. didn’t show up
B. hasn’t shown
C. hadn’t shown
D. wasn’t showing up
解析:考查时态。根据句意:我要求他8点钟来,但他没有出现。现在已经9点钟了。故用一般过去时,选A。