问题
选择题
Mr．Green didn’t understand ________ made his daughter so absent-minded this morning．
A．how that was
B．what was it
C．why it was that
D．what it was that
答案
答案：D
这题考查的是强调句的特殊疑问句做宾语从句的用法，因为强调的是从句的主语，所以疑问词用what，而且宾语从句的语序是陈述句。选D。