It was Jane I saw in the library this morning.
A. that
B. which
C. what
D. when
网友回答
(答案→)A. that
B. which
C. what
D. when
解析:考查强调句:强调句的结构是:It is/was+强调部分+that+其余部分。判断是否是强调句的方法是去掉强调结构,如果句子仍然成立就是强调句:这句话去掉强调结构句子是:I saw Jane in the library this morning.所以是强调句,强调的是宾语,选A。