问题补充:
-- you called yesterday evening?
---My sister. Why?
A. Who it is that
B. Who is it that
C. Who was it that
D. Who it was that
答案:
A. Who it is that
B. Who is it that
(答案→)C. Who was it that
D. Who it was that
解析:考查强调句型。It is/was 被强调成分that/who其它成分;这是强调句型的基本结构。强调句型最大的特点就是把it is/was…that/who去掉,句子仍然成立。本题考查它的特殊疑问句。句意:—昨天晚上你到底叫了谁?—我的妹妹,怎么了?