问题补充:
Mary didn’t understand made her deskmate so upset all the morning.
A. it was that
B. why it was that
C. how that was
D. what it was that
答案:
A. it was that
B. why it was that
C. how that was
(答案→)D. what it was that
解析:本题考查强调句型。该题为特殊疑问句整体做understand的宾语,因此应该使用正常语序。由于made her deskmate so upset缺少主语,因此我们可以断定“被强调部分”是做主语的,因此应该使用疑问代词what。