—Do you know that Mr. White left the party without saying a word last night?
—Perhaps because he was angry with Alan’s rude remarks.
A. why was it
B. how was it
C. how it was
D. why it was
网友回答
A. why was it
B. how was it
C. how it was
(答案→)D. why it was
解析：考查强调句型的特殊疑问句。强调句型的基本结构为It is/was被强调成分that/who其它成分；其最大的特点就是去掉it is/was…that/who…句子仍然成立。要注意强调句型能强调除谓语动词以为的所有的句子成分。本句强调的是原因状语，然后对原因状语进行提问。句意：昨天晚上究竟是为什么怀特先生一句话不说就离开了聚会？—也许是因为对于Alan粗鲁的话很生气吧！故D正确。