Mike didn’t understand made his wife so upset this morning.
A. what was it that
B. what it was that
C. how that was
D. why it was that
网友回答
A. what was it that
(答案→)B. what it was that
C. how that was
D. why it was that
解析：含有疑问词的强调句型构成“疑问词 +it be that +其他部分。” 此题对主语提问应该用疑问代词what，宾语从句应用陈述语序，所以选B。